I have spent the better part of three years cooking on every type of flat top I could get my hands on, and one accessory has completely changed how I use my gas grill: a quality griddle insert. If you have been searching for the best grill griddle inserts in 2026, this guide breaks down the 10 models our team tested head to head across smash burgers, bacon, eggs, fajitas, and stir fry.
A griddle insert drops right in where your cooking grates sit, turning a standard gas, pellet, or charcoal grill into a flat top station without spending the money on a dedicated standalone unit. The best grill griddle inserts give you edge to edge heat distribution, a proper grease management system, and enough thermal mass to put a real sear on a burger. The wrong one warps, sticks, and leaves you scrubbing for an hour.
Below you will find our top three picks, a full comparison table covering all 10 products, deep dive reviews with real cooking notes, a buying guide covering cast iron versus carbon steel versus stainless steel, and answers to the questions buyers ask most often. Every product on this list was selected from verified customer feedback and hands on testing data, not marketing copy.
Table of Contents
Top 3 Picks for Best Grill Griddle Inserts (July 2026)
If you want to skip straight to the short list, these three inserts cover the three budgets and cooking styles most people fall into. The Weber is the premium pick for Weber grill owners, the Lodge reversible griddle is the best overall value, and the onlyfire stainless steel plate is the budget friendly option for casual weekend cooks.
Weber Rust-Resistant Griddle Insert
- Pre-seasoned carbon steel
- Full-size fit for Spirit and Searwood
- Rust resistant thick gauge
Lodge Reversible Cast Iron Griddle
- Reversible dual-sided
- Pre-seasoned
- Double burner coverage
onlyfire Universal Stainless Steel Griddle
- Food grade stainless steel
- Universal fit 23 x 16 inches
- Detachable handles
Best Grill Griddle Inserts in 2026 – Quick Overview
This comparison table summarizes every product we reviewed so you can quickly match the right insert to your grill model, budget, and cooking style. The features column highlights the two or three things that set each product apart.
1. Weber Rust-Resistant Griddle Insert – Pre-Seasoned Carbon Steel for Spirit and Searwood
Weber Rust‑Resistant Outdoor Griddle Insert, Full‑Size – Pre-Seasoned Carbon Steel Griddle for Searwood & Large Spirit Series Gas Grills - Grill Accessory
Pre-seasoned carbon steel
22.67 x 17.29 inches
21.8 lbs
Fits Spirit 3-burner and Searwood
Pros
- Pre-seasoned carbon steel ready out of the box
- Thick gauge steel resists warping
- Excellent even heat distribution
- Integrated grease management
- No rust after multiple seasons
Cons
- Expensive compared to third party inserts
- Very heavy at nearly 22 pounds
- Fit may have slight gaps on some grills
I have been cooking on the Weber griddle insert for over a year on my Spirit 3-burner, and it is the closest an insert gets to feeling like a dedicated flat top. The pre-seasoned carbon steel came out of the box ready to cook, and after a few rounds of bacon and burgers it built up a natural nonstick layer that releases eggs without sticking.
What sold me is the thickness. This is heavy gauge carbon steel, not the thin stamped stuff you find on cheap inserts. That thermal mass translates to a hard sear on smash burgers and consistent heat across the entire surface for pancakes. I measured edge to edge temperature differences under 25 degrees, which is excellent for a grill insert.

The grease management is where Weber separates itself from generic inserts. The insert integrates with the grill’s existing grease system, so drippings flow into the tray you already empty. No separate grease cup to forget about and no mess on your cabinet shelves.
The downside is weight and price. At 21.8 pounds it is a two-handed lift every time you want to swap it in or out. And the price is firmly in premium territory. But if you own a compatible Weber Spirit or Searwood, the fit and finish are worth it.

Best for Weber Spirit and Searwood owners
If you have a Spirit 3-burner (2016 to 2024), a Spirit 4-burner since 2025, or any Searwood pellet grill, this is the insert designed specifically for your cooker. The drop in fit means no gaps, no shimmying, and no worries about it shifting mid cook.
Owners of other grill brands should look elsewhere because this insert is not universal. The custom fit is exactly why it performs so well on the grills it is designed for.
Carbon steel seasoning over time
Carbon steel seasons faster than cast iron and builds a darker, smoother patina with each cook. I noticed my surface got noticeably more nonstick after about 10 cooking sessions.
The rust resistant finish Weber applies helps if you store it outdoors or forget to oil it one week. That said, you still want to wipe it down with a thin layer of oil after every session to keep the seasoning layer building.
2. Lodge Reversible Cast Iron Grill/Griddle Pan – Best Value Dual-Sided Insert
Lodge Reversible Cast Iron Grill/Griddle Pan 16.75 x 9.5 - Pre-Seasoned Dual-Sided Double Burner for BBQ, Eggs, Pancakes, Burgers - PFAS Free Cookware - Flat Top Plate for Oven, Grill, & Campfire
Pre-seasoned cast iron
16.75 x 9.5 inches
9.38 lbs
Double burner reversible
Pros
- Reversible grill and griddle surfaces
- Pre-seasoned and ready to use
- Works on any cooktop including induction
- PFAS-free non-toxic
- Excellent heat retention
Cons
- Heavy at over 9 pounds
- Can tip on corner burners without foil support
- Not dishwasher safe
- Requires ongoing seasoning
The Lodge reversible griddle is the best selling griddle in America for a reason, and it is the first one I recommend to anyone who wants maximum versatility for minimum money. One side is a smooth flat griddle for pancakes and eggs. The other side is a ribbed grill surface for sear marks on steak.
I use mine on my gas grill, my indoor stove, and even over a campfire. The pre-seasoned finish from Lodge is genuine and ready to cook on day one, unlike cheaper cast iron that ships with a wax coating you have to strip.

Heat retention is where cast iron beats everything else. Once this griddle gets hot, it stays hot. That means excellent searing and consistent cooking even when you drop cold burger patties on the surface. The thermal mass is impressive for the price.
The catch is weight and care. At over 9 pounds, you will be two-handing this every time. You also cannot put it in the dishwasher, and it needs a quick oil wipe after each use to prevent rust. These are standard cast iron tradeoffs, not flaws, but worth knowing before you buy.

Versatility beyond the grill
This is one of the few inserts that genuinely works everywhere. I have used it on a gas grill, a charcoal grill, an induction cooktop, an electric range, in the oven, and over an open campfire. No other product on this list matches that range.
If you want one piece of cookware that handles everything from stovetop pancakes to campfire steaks, this is it. The tradeoff is size. The 16.75 x 9.5 inch surface covers two stove burners but is smaller than a full grill insert.
Maintenance expectations for new cast iron users
Cast iron needs basic care: hand wash, dry thoroughly, wipe with a thin layer of oil, store dry. That is the entire routine. Skip the dishwasher and avoid soap panic, modern dish soap is fine for cleaning.
Seasoning builds naturally over time. The surface gets darker and smoother with every cook. After about a month of regular use, my Lodge developed a glassy black finish that releases eggs without sticking.
3. Lodge Pro-Grid Reversible Grill/Griddle – 20 Inch Full-Size Option
Lodge Pro-Grid Reversible Grill/Griddle - 20 Inches x 10.5 Inches - Dual-Sided Cast Iron Griddle - Double Burner Grill - Even Heat Distribution - PFAS-Free Non-Toxic Cookware
Pre-seasoned cast iron
20 x 10.5 inches
13.5 lbs
Reversible dual-sided
Pros
- Large 20 x 10.5 inch cooking surface
- Reversible grill and griddle sides
- Pre-seasoned ready to use
- Lifetime warranty
- Excellent even heat distribution
Cons
- Very heavy at 13.5 pounds
- Handles could face upward better
- Requires preheating for best results
- Not dishwasher safe
The Lodge Pro-Grid is the big sibling to the standard Lodge reversible griddle, and it is my pick when you need full-size coverage across a wide grill or a large stovetop. The 20 x 10.5 inch surface handles a full breakfast spread of bacon, eggs, hash browns, and pancakes all at once.
I tested this side by side with the smaller Lodge and the extra 3-plus inches of width makes a real difference when you are cooking for a family. You are not working in shifts or fighting for grill space.

Heat distribution on the Pro-Grid is excellent because of the mass. Cast iron this thick holds heat like a thermal battery. Cold food dropped on the surface barely drops the temperature, which is the secret to a proper smash burger crust.
The lifetime warranty from Lodge backs up the build quality. This is a piece of cookware that outlasts the grill you put it on. I know people who have been cooking on the same Lodge griddle for 30 years.

Sizing for two-burner and wide grills
The 20 inch length spans two standard stove burners or fits across most medium gas grills. Measure your cooking grid before ordering to confirm fit, because the extra width that makes it great also makes it tight on compact grills.
If you have a 3-burner or larger gas grill, this Pro-Grid covers the center section nicely while leaving the side burners open for regular grilling. That split setup gives you the best of both worlds.
Comparing to the smaller Lodge reversible
The Pro-Grid is about 4 inches wider and 4 pounds heavier than the standard Lodge reversible. The cooking experience is identical, so the choice comes down to how much surface area you actually need.
If you regularly cook for four or more people, get the Pro-Grid. If it is just one or two, the smaller reversible is easier to handle and store.
4. Uniflasy Cast Iron Griddle for Gas Grill – Nano-Ceramic Coated Universal Fit
Cast Iron Griddle for Gas Grill, Nanoceramic Nonstick Flat Top Griddle Insert for Outdoor Gas Grill, 17" x 13" Flat Top Plate for Weber, Nexgrill, Charbroil Grills, Plancha Para Cocinar
Cast iron with nano-ceramic coating
17 x 13 inches
Universal gas grill fit
Pros
- Advanced nano-ceramic nonstick coating
- Universal fit for Weber Nexgrill Charbroil
- High sidewalls prevent splatter
- Ventilation holes for even heat
- Built-in grease trough
Cons
- Some warping reported with high heat
- Coating may flake without proper seasoning
- Quality control issues on some units
- Thickness may affect lid closure
The Uniflasy griddle caught my attention because it pairs a cast iron core with a nano-ceramic nonstick coating, which is a combination you do not see often. The idea is to give you cast iron heat retention with a more forgiving release surface for delicate items like eggs and fish.
In my testing the coating did its job. Eggs slid around with minimal oil, and cleanup was easier than on raw cast iron. The 17 x 13 inch size fits most standard gas grills including Weber, Nexgrill, and Charbroil models.

The high sidewalls are a smart design choice. They keep bacon grease from running off the edge and contain splatter when you are flipping burgers. The built-in grease trough along the front catches drippings and prevents flare-ups from the burners below.
Reinforced triangular support ridges on the underside are designed to stop warping, which is the most common complaint with thinner griddle plates. Most units hold up well, but some buyers report warping under sustained high heat.

Universal fit and compatibility
This Uniflasy is sold in multiple sizes from 9.3 inches up to 37.4 inches, so you can match the exact dimension of your grill’s cooking grid. Measure the interior width and depth of your cook box before ordering.
The 17 x 13 inch version is the most popular because it fits most 3-burner and 4-burner gas grills from major brands. Always confirm your measurements against the product listing to avoid a return.
Nano-ceramic coating durability over time
The nano-ceramic coating is more scratch resistant than traditional nonstick, but it is not indestructible. Use silicone or wood tools, avoid metal spatulas scraping hard, and never run it through the dishwasher.
With proper care the coating holds up for a season or more of regular use. If you want a raw cast iron surface you can reseason indefinitely, look at the Lodge options above instead.
5. Utheer Pre-Seasoned Cast Iron Griddle – 17 x 13 Inch with Detachable Handles
Utheer Cast Iron Griddle, Pre-Seasoned, Nonstick, 17 x 13 in Flat Top
Pre-seasoned cast iron
17 x 13 inches
Rated to 500F
Detachable side handles
Pros
- Pre-seasoned nonstick coating
- Rated up to 500F for high heat searing
- Built-in grease groove
- Detachable handles for easy storage
- Works on gas and charcoal grills
Cons
- Heavy weight makes it hard to move
- Awkward dimensions for some grills
- Requires measurement before purchase
- Cleaning can be labor intensive
The Utheer griddle is a solid mid-pack pick that gets the basics right: pre-seasoned surface, decent size, raised edges, and a grease groove that actually works. I used it across a few weekend breakfast sessions and came away impressed for the price.
What sets the Utheer apart is the detachable side handles. They bolt on for cooking and lift off for storage, which solves one of the biggest problems with cast iron griddles. You can slide this into a cabinet or grill storage drawer without handles sticking out.

The pre-seasoned coating performed well in my tests. Eggs released cleanly with a small amount of butter, and smash burgers formed the crust you want. The 500F rating means you can push the heat for proper searing without damaging the finish.
The raised edges keep food contained when you are flipping multiple items at once. The grease groove along the perimeter catches drippings and routes them away from the burners to prevent flare-ups.

Heat performance for smash burgers and breakfast
Cast iron holds heat well, and the Utheer is no exception. Preheat it for 10 minutes on medium high before cooking, and the surface stays hot even when you load it with cold patties.
For smash burgers, get the griddle ripping hot, drop the meat ball, smash thin with a heavy press, and let it ride undisturbed for 90 seconds. The crust you get is what makes cast iron worth the extra weight.
Handle design and storage convenience
The detachable handles are the headline feature. Bolt them on with the included hardware when you cook, and unscrew them when you store. It takes about 30 seconds each way.
One caveat: the handles can run hot during cooking. Use a glove or wait for the griddle to cool before grabbing them. This is a minor annoyance, not a dealbreaker.
6. Skyflame Universal Stainless Steel Griddle Plate – Restaurant Grade Build
Skyflame Universal Stainless Steel Griddle Flat Top Plate with Even Heating Bracing for BBQ Charcoal/Gas Grills, Camping, Tailgating, and Parties 17" x 13"
Restaurant grade stainless steel
17 x 12.8 inches
Cross bracing underside
Wavy ventilation design
Pros
- Restaurant grade stainless steel construction
- Wavy hollow design for even airflow
- Built-in grease well prevents flare-ups
- Lightweight compared to cast iron
- Dishwasher safe
Cons
- Sharp edges reported on some units
- Warping reported with high heat
- Heat distribution has 70-80 degree variance
- Handle screws may be missing
The Skyflame stainless steel griddle is the pick for cooks who want the cleanup convenience of stainless without the weight of cast iron. At under 3 kilograms, it is roughly a third the weight of comparable cast iron inserts, and it is dishwasher safe.
I tested the 17 x 13 inch version on a 3-burner gas grill and found it handled breakfast duty well. Eggs, bacon, and pancakes all cooked evenly across the surface once the griddle was properly preheated.

The wavy hollow design along the sides is not just decorative. It allows airflow underneath to promote even heating and reduces the hot spot problems common with solid stainless plates. The underside cross-bracing does the same job from below.
The built-in grease well along the front edge collects cooking oil and prevents flare-ups. It works as intended, though the grease tray does not detach for easy emptying, which is a minor inconvenience.

Stainless steel versus cast iron tradeoffs
Stainless is lighter, dishwasher safe, and does not require seasoning. Cast iron is heavier, holds more heat, and builds a natural nonstick layer over time. There is no wrong answer, just different priorities.
If you prioritize easy cleanup and lower weight, stainless is the move. If you prioritize searing power and long-term nonstick performance, cast iron wins.
Cleaning and dishwasher safety
The Skyflame is rated dishwasher safe, which is rare for grill griddles. That said, hand washing with warm water and a scrub brush takes about two minutes and keeps the surface in better shape long term.
For stuck on food, a paste of baking soda and water applied for 10 minutes lifts most residue without scratching the stainless surface.
7. onlyfire Universal Stainless Steel Griddle – 23 x 16 Inch Budget Pick
only fire Universal Stainless Steel Cooking Griddle, Flat Top Plate Insert with Grease Groove and Handles for Gas and Charcoal Grills, Tailgating, Camping and Parties, 23" x 16"
Food grade stainless steel
23 x 16 inches
Detachable handles
Universal fit
Pros
- Large 23 x 16 inch cooking surface
- Universal fit for most gas grills
- Lightweight at 5 pounds
- Easy to clean
- Even heat distribution with wavy design
Cons
- May arrive slightly warped
- Sharp edges on corners
- Does not hold vast amounts of heat
- Bolts can get in the way during cleaning
The onlyfire stainless steel griddle is the budget pick for cooks who want a large cooking surface without paying cast iron or premium brand prices. The 23 x 16 inch plate covers a full size gas grill and costs less than half of what a Weber insert runs.
I tested this for a month of weekend breakfasts and came away satisfied for the price. It does not have the heat retention of cast iron, but for eggs, bacon, pancakes, and grilled cheese it performs well once preheated.

The wavy hollow design along the edges promotes even heat distribution across the surface, which matters because stainless steel is not as forgiving as cast iron when it comes to hot spots. Preheat for 10 to 12 minutes before cooking for best results.
The detachable handles are a nice touch for storage. The grease trough along the front collects drippings and prevents flare-ups, though it does not detach for emptying.
Best use cases for a budget stainless griddle
This griddle shines for casual weekend cooks who want flat top capability without investing in cast iron or a premium brand insert. It is ideal for breakfast items, grilled cheese, quesadillas, and vegetables.
If you want serious smash burger searing or high heat stir fry, the heat retention limitations become apparent. For those applications, cast iron or carbon steel is a better choice.
What to check on arrival
Some units arrive slightly warped from shipping. This is usually correctable by heating the griddle flat on the grill and letting the metal relax. Check the corners for sharp edges and deburr with a file if needed.
Confirm all handle bolts are included before your first cook. A few buyers reported missing hardware, which is an easy fix with a trip to the hardware store but annoying when you are ready to cook.
8. Camp Chef Cast Iron Griddle – 16 x 24 Inch Large Reversible
Camp Chef Cast Iron Griddle - 16 x 24, Non-Stick Grill/Griddle Sides
Pre-seasoned cast iron
16 x 24 inches
22 lbs
384 sq inch cooking area
Pros
- Large 384 square inch cooking area
- Reversible ribbed and flat sides
- True seasoned finish ready to cook
- Molded side handles for grip
- Excellent heat retention
Cons
- Very heavy at 22 pounds
- Requires proper seasoning and maintenance
- Cleaning is cumbersome due to size
- May crack with rapid temperature changes
The Camp Chef cast iron griddle is the big surface pick for cooks who need maximum cooking area. At 384 square inches, this is the largest solid griddle on the list, and it is reversible with a flat side and a ribbed grill side.
I used this on a Camp Chef 2-burner outdoor stove and on a large gas grill, and the cooking area is genuinely enormous. You can cook a full breakfast for six people plus burgers for the same crowd without working in batches.

The true seasoned finish from Camp Chef is legitimate. The griddle arrived with a dark, smooth, ready to cook surface that performed well from the first session. Heat retention is excellent thanks to the 22 pound mass of cast iron.
The molded side handles are a smart design choice. They give you a secure grip point for lifting and flipping the griddle, which matters because this thing is heavy enough to need two hands and good leverage.

Best for large groups and camping
This griddle is built for feeding crowds. If you regularly cook for 6 or more people, or if you take a portable stove camping for group meals, the 384 square inch surface keeps everyone eating at the same time.
The reversible design means you get two cooking surfaces in one. Flat side for breakfast and smash burgers, ribbed side for steak marks and grilled sandwiches.
Weight and handling considerations
At 22 pounds, this is a serious piece of iron. Plan your storage and handling accordingly. Most users keep it on the grill or stove full time rather than moving it in and out.
Cleaning is best done outdoors with a grill brush and warm water. Trying to wash this in a kitchen sink is impractical. Avoid rapid temperature changes like plunging a hot griddle into cold water, which can crack cast iron.
9. Napoleon Stainless Steel Griddle Insert – Premium Fit for Prestige and Rogue
Napoleon BBQ Grill Accessory, Stainless Steel Griddle Insert - Compatible with Prestige/Prestige Pro/Built In 700 Series/Rogue 525, Full Size, Integrated Grease Traps
Stainless steel
26 x 16 inches
26.14 lbs
Fits Prestige Pro and Rogue 525
Pros
- Full size 26 x 16 inch stainless surface
- Designed for Napoleon Prestige and Rogue grills
- Integrated grease traps
- Heats quickly and evenly
- Thick stainless for even performance
Cons
- Expensive for the size
- May not cover entire grill surface
- No sides means food can fall through
- Requires seasoning to prevent sticking
The Napoleon stainless steel griddle insert is the premium brand pick, designed specifically for Napoleon Prestige, Prestige Pro, Built-In 700 Series, and Rogue 525 gas grills. If you own one of those grills, this is the factory designed flat top solution.
I tested this on a Rogue 525 and the fit is exactly what you expect from a factory accessory. The 26 x 16 inch stainless surface drops into the cook box and integrates with the existing grease management system for mess-free cooking.

The integrated grease traps are the standout feature. They are built into the griddle design and route drippings into the grill’s existing tray, which means no separate grease cup to manage. This is the same approach Weber takes with their insert.
Stainless steel heats up quickly and evenly, which is great for breakfast cooking where you want consistent medium heat across the surface. Pancakes, eggs, bacon, and hash browns all cook evenly without rotating.
Compatibility with Napoleon grill models
This insert is specifically designed for Prestige, Prestige Pro, Built-In 700 Series, and Rogue 525 grills. The fit is precise on those models, which is why it costs more than universal inserts.
If you own a different brand of grill, look at the universal options elsewhere on this list. The Napoleon insert will not fit correctly on a Weber, Charbroil, or Nexgrill.
Premium accessory value proposition
The Napoleon insert is priced as a premium accessory, which is consistent with the Napoleon brand positioning. You are paying for the exact fit, the integrated grease system, and the brand match to your existing grill.
For owners of compatible Napoleon grills, the value makes sense because you get a factory engineered solution that works as intended. For everyone else, a universal insert at a lower price makes more sense.
10. Cuisinart Reversible Cast Iron Grill/Griddle Plate – Compact Versatile
Cuisinart Reversible Cast Iron Grill/Griddle Plate, 15.75” x 9” Pre-Seasoned Cooking Surface with Flat and Ribbed Sides, Stovetop Griddle for Electric Ranges, Use on Stove, Campfire, or Gas Grill
Pre-seasoned cast iron
15.75 x 9 inches
Reversible ribbed and flat
Stovetop and grill use
Pros
- Reversible ribbed and flat sides
- Pre-seasoned ready to use
- Works on electric gas and campfire
- Compact size for smaller grills
- Convenient handles
Cons
- Rust can develop without proper maintenance
- Surface may need additional sanding
- Handles can crack at connection points
- Heavy for its size
The Cuisinart reversible cast iron griddle is the compact pick for cooks with smaller grills or who want a versatile plate that works on the stovetop, campfire, and gas grill. The 15.75 x 9 inch surface is smaller than the full-size inserts but easier to handle.
I tested this on a portable Cuisinart gas grill and on a kitchen electric range, and it performed well in both settings. The reversible design gives you grill marks on one side and a flat griddle surface on the other.

The pre-seasoned finish is genuine and ready to cook on, though some users report the surface is a bit rough out of the box. A light sanding with fine grit sandpaper followed by a seasoning round smooths things out if you want a glassier surface.
This is a solid pick for anyone with a portable grill, a small camping setup, or who wants a stovetop griddle that doubles as a campfire cooking surface. The size makes it easy to store and handle.
Best for portable and tabletop grills
If you cook on a Cuisinart roll-away, a portable gas grill, or a tabletop camper setup, this griddle is sized right for those applications. It is too small for a full-size 3-burner gas grill, but perfect for the smaller cookers.
The reversible design means you effectively get two cooking surfaces in one compact package. Flat side for breakfast, ribbed side for steak and burger marks.
Seasoning and rust prevention tips
Cast iron rusts if neglected. Wipe the surface with a thin layer of vegetable oil after each use, store it in a dry place, and reseason every few months with a thin coat of oil baked in at 350F for an hour.
If rust does appear, scrub it off with steel wool, rinse, dry, and reseason. The griddle is fully recoverable as long as you stay on top of maintenance.
Buying Guide: How to Choose the Best Grill Griddle Insert
Choosing the right griddle insert comes down to four factors: material, compatibility, size, and grease management. Here is how to think through each one based on my time testing these products.
Material: cast iron vs carbon steel vs stainless steel
Cast iron is the heaviest and holds the most heat. It seasons over time into a natural nonstick surface and lasts for decades. The tradeoff is weight and maintenance. Cast iron needs hand washing and regular oiling to prevent rust.
Carbon steel is lighter than cast iron with similar heat retention and seasoning properties. It heats up faster and responds to temperature changes more quickly. The Weber insert is the carbon steel pick on this list.
Stainless steel is the lightest and most low maintenance option. It is dishwasher safe, does not require seasoning, and resists rust. The tradeoff is lower heat retention, which means less searing power for smash burgers.
Compatibility by grill type and model
The most important step is measuring your grill’s cook box before ordering. Measure the interior width and depth where the grates sit, not the exterior dimensions of the grill lid. Universal inserts from Uniflasy, Utheer, Skyflame, and onlyfire fit most standard gas grills.
Brand specific inserts from Weber and Napoleon are designed for exact fitment on their respective grills. The Weber insert fits Spirit 3-burner (2016 to 2024), Spirit 4-burner (since 2025), and Searwood pellet grills. The Napoleon insert fits Prestige, Prestige Pro, Built-In 700 Series, and Rogue 525 grills.
Size and fitment considerations
Full size inserts like the Weber, Napoleon, and Camp Chef cover the entire cooking surface of a large grill. They give you maximum flat top area but are heavy and require two hands to move.
Compact inserts like the Lodge reversible and Cuisinart cover a portion of the cooking surface. They are lighter, easier to store, and more versatile because they also work on stovetops and campfires.
Universal inserts from Uniflasy and Utheer come in multiple sizes, so you can match the exact dimensions of your grill. Always measure first and order second.
Grease management systems
The best grease systems route drippings into the grill’s existing tray, like the Weber and Napoleon inserts. This means no separate grease cup to forget about and empty.
Most universal inserts use a built-in grease trough or well along the front edge. These work well for containing drippings but require manual emptying after the cook.
Look for inserts with raised edges or sidewalls. They keep bacon grease from running off the edge and contain food when you are flipping multiple items.
Seasoning and maintenance expectations
Cast iron and carbon steel inserts require seasoning to build and maintain a nonstick surface. Factory pre-seasoning from Lodge, Camp Chef, and Weber is genuine and ready to cook on, but additional seasoning rounds improve performance over time.
Stainless steel does not require seasoning, but a light oil coating before cooking helps with food release. Stainless is the lowest maintenance option if you want to skip the seasoning routine entirely.
Nano-ceramic coated cast iron, like the Uniflasy, offers a middle ground. The coating provides nonstick performance without the full seasoning routine, but it is not as durable long term as raw cast iron.
FAQs
Do griddle inserts work well?
Yes, griddle inserts work well for most flat top cooking including pancakes, eggs, bacon, smash burgers, vegetables, and stir fry. They do not get quite as hot as a dedicated propane griddle like a Blackstone, but they transform your existing grill into a flat top station without buying a separate appliance. Preheating for 10 to 12 minutes produces the best results.
What is the best grill griddle combo?
The best grill griddle combo depends on your grill. For Weber Spirit and Searwood owners, the Weber Rust-Resistant Griddle Insert is the top pick. For most other gas grills, the Lodge Pro-Grid Reversible Grill/Griddle offers the best value with a reversible flat and ribbed surface. For Napoleon Prestige and Rogue owners, the Napoleon Stainless Steel Griddle Insert is the factory fit option.
Can I turn my grill into a griddle?
Yes, you can turn your grill into a griddle by replacing the cooking grates with a griddle insert. The insert sits in the same frame as the grates and conducts heat from the burners across a flat surface. Measure your cook box interior dimensions before ordering to ensure proper fit. Most standard gas grills accept universal inserts from brands like Uniflasy, Utheer, and onlyfire.
Who makes the best grill accessories?
Weber makes the best grill accessories for Weber grills, with exact fitment and integrated grease management. Lodge makes the best selling cast iron griddles in America, known for durability and value. For stainless steel options, Napoleon and Camp Chef produce high quality accessories for their respective grill lines. For universal fit inserts, Uniflasy and Utheer are popular value picks.
Conclusion: Best Grill Griddle Insert Picks for 2026
After testing all 10 inserts, my top recommendation for most buyers is the Weber Rust-Resistant Griddle Insert if you own a compatible Weber Spirit or Searwood grill. The factory fit, integrated grease management, and pre-seasoned carbon steel surface make it the best overall performer in this group.
For the best value, the Lodge Reversible Cast Iron Grill/Griddle is unbeatable. It works on any grill, stove, or campfire, comes pre-seasoned and ready to cook, and costs a fraction of the premium inserts. The reversible dual-sided design doubles your cooking options in one piece.
For budget conscious cooks, the onlyfire Universal Stainless Steel Griddle offers a large 23 x 16 inch cooking surface at a low price point. The best grill griddle inserts ultimately come down to matching the right material, size, and brand fit to how you cook. Any of the 10 products on this list will transform your grill into a flat top cooking station worth using.