Best Cast Iron Griddle For Gas Grill: 5 Top Picks Compared

If you have a gas grill, a cast iron griddle insert can turn it into a flat-top cooking station. You can make pancakes, smash burgers, fried eggs, and stir-fried vegetables without needing a separate appliance. The right griddle depends on your grill’s grate size, how much cooking space you need, and whether you want extra features such as a spatula set or a grease channel. This guide covers five popular options, compares them side by side, and explains what to check before you buy.

Quick Comparison Table

Our Picks: Best Cast Iron Griddle For Gas Grill reviews

BBQ Future Universal Cast Iron Griddle with Spatula Set: Best Overall for Feeding a Crowd

This griddle is a 23-inch by 16-inch cast iron insert designed to fit a wide range of grills and stove tops. Its large surface gives you room to cook breakfast, burgers, steaks, and vegetables in one session. The listing includes a set of stainless steel griddle spatulas, which is a useful bonus if you are setting up your first flat-top station and do not already own cooking tools.

The build centers on black cast iron that is forged at high temperatures. The listing describes thickened inner walls meant to resist warping. Side handles let you lift and reposition the insert, and tall sidewalls help keep food and grease from sliding off the edges. A full-width grease tray runs along the front, which helps manage drippings during longer cooking sessions.

In practice, this model suits people who cook for groups and want a complete setup right out of the box. Owners who host backyard gatherings often appreciate having enough space to cook several items at once without working in batches. The pre-seasoned, nonstick-treated surface also gives you a head start, although the listing still recommends seasoning the griddle before the first use. Plan on giving it a proper seasoning session so it develops a stronger nonstick layer over time.

The main trade-off is size. A 23-by-16-inch insert needs a grill with enough room to hold it safely, so measure your grates before ordering. Its weight is also a factor. Cast iron holds heat well, but a large piece is harder to move around than a smaller one, especially when it is hot.

Compared with the 17-by-13-inch options in this list, this griddle offers more cooking area and a more complete accessory package. If you cook for two or three people, a smaller griddle may be easier to manage. For bigger meals, this is one of the most practical choices here.

Pros:

• Large 23″ x 16″ cooking surface for family-sized meals
• Includes a stainless steel spatula set
• Side handles make it easier to move and store
• Full-width grease tray helps manage drippings

Cons:

• Large size may not fit smaller grills
• Heavy when hot, so it needs careful handling

Verdict: If you want the most cooking space and a ready-to-use kit, this is a strong pick. Confirm that your grill can hold a 23-inch insert, and be prepared to season it well before you start cooking.

Uniflasy 17 x 13 Inch Cast Iron Griddle: Best for Smaller Grills and Portable Cooking

This 17-by-13-inch griddle is a middle-size option that can work on a gas grill, a charcoal grill, or a stove top. The listing presents it as a flexible tool for camping, tailgating, and home cooking, and its smaller footprint makes it easier to fit on grills with limited space. It offers about 221 square inches of cooking area, which the listing describes as nearly double the surface of a standard griddle of similar size.

The griddle uses cast iron with a coated cooking surface. The listing highlights crossbar reinforcement on the underside, which is meant to reduce bending when the metal heats up. It also includes a built-in grease trough and detachable handles, so you can carry it to a campsite or store it in a small space when you are done.

This model makes the most sense for people with compact grills, RV owners, and anyone who wants a griddle they can move easily. Many owners appreciate that it heats evenly enough for pancakes, eggs, and bacon at the same time. The smaller size also heats up faster than the larger inserts in this list, which can save time on quick weekday breakfasts.

The drawback is capacity. At 17 by 13 inches, it is less suitable for large groups, and you may need to cook in batches when feeding a crowd. Since the surface is coated, you should avoid harsh abrasives and follow the care steps in the product listing to keep the finish in good shape.

Compared with the 23-by-16-inch models, this griddle trades space for portability. If your grill has limited room or you need something you can pack up quickly, it is a practical choice.

Pros:

• Compact size fits smaller grills and stove tops
• Crossbar reinforcement helps resist bending under heat
• Detachable handles make it easy to carry and store
• Built-in grease trough helps reduce flare-ups

Cons:

• Limited cooking space for large groups

Verdict: This is a good fit for small grills, camping trips, and cooks who want portability over raw capacity. If you regularly cook for a big crowd, choose one of the larger options instead.

Onlyfire Pre-Seasoned Universal Cast Iron Griddle: Best for Grease Control

The Onlyfire griddle is a 23-by-16-inch universal cast iron insert with a standout feature: tall sidewalls. The listing describes these high edges as a way to keep oil and grease contained, which matters on a gas grill where drippings can cause flare-ups. The griddle stands about 2.6 inches tall, giving it a deeper profile than a flat plate.

Because the design is versatile, it works on a grill, a range top, or an outdoor burner. The listing mentions handles on both sides, which help with lifting and repositioning. It also notes that the griddle can handle breakfast, sandwiches, seafood, and vegetables, so it suits a wide range of menus.

This model is a good choice for people who cook both indoors and outdoors. If you want to make pancakes on a winter morning or sear burgers on the stove, its size and sidewall height make it a flexible tool. Buyers often mention that the high edges make cleanup easier because grease stays on the griddle instead of dripping onto the grill grates below.

Keep in mind that the deeper sidewalls add weight and bulk. The griddle also needs enough room on your grill to sit securely. If you prefer a thin, low-profile cooking surface for delicate foods like thin pancakes, the tall edges may feel less natural.

Among the five picks, this is the best option if grease control is your top priority. It is similar in size to the BBQ Future model but puts more emphasis on containing drippings.

Pros:

• Extra-high sidewalls help contain grease and oil
• Large 23″ x 16″ cooking area
• Works indoors and outdoors on several heat sources
• Handles on both sides make it easier to move

Cons:

• Taller sides add bulk and weight

Verdict: Choose this griddle if you want a large surface with strong grease control and the option to use it indoors. Make sure it fits your grill and that you have space to store it.

GORGERILA 17 x 13 Inch Universal Cast Iron Griddle: Best for Everyday Budget-Minded Cooking

This GORGERILA griddle measures 17 by 13 inches and is made from cast iron. It is designed to work on charcoal grills, gas grills, and electric grills, and it can also be used on a stove top. The listing notes that the base has been reinforced and made thicker to help the griddle keep its shape during use.

The surface has a matte enamel finish. The listing says this helps reduce food sticking and makes the griddle easier to clean after it has been heated. A grease groove runs along the edge to collect excess oil, which helps keep the grill area tidier. The listing also mentions that the griddle can be used for teppanyaki-style cooking, which suits those who enjoy hibachi-style meals at home.

This model is a sensible option for cooks who want a dependable mid-size griddle without paying for extra accessories. It works well for weekend breakfasts, a few burgers, or sautéed vegetables for a small household. Many owners appreciate that the thicker base feels sturdy and that the grease channel keeps drippings in one place.

The main limitation is that it lacks some of the extras found on other models, such as a spatula set or tall sidewalls. The matte enamel surface also works differently from a traditional seasoned cast iron finish, so it may take some adjustment for cooks used to building up a seasoning layer by hand. The listing does not describe handles in detail, so check the product photos and specifications before you buy if you plan to move the griddle often.

Compared with the Uniflasy model, which is the same general size, this option focuses on a sturdy base and an easy-clean surface rather than a long list of features. It is a practical pick for cooks who want simplicity.

Pros:

• Thicker, reinforced base helps resist warping
• Matte enamel surface helps reduce sticking and cleans up easily
• Grease groove helps keep drippings contained
• Works on several types of grills and stove tops

Cons:

• Fewer included extras, such as a spatula set or tall sidewalls

Verdict: This is a solid, straightforward griddle for everyday use on a medium-size grill or stove. It makes sense if you want durability and easy cleanup without extras you may not need.

Unidanho Cast Iron Griddle Gas Grill Pan Insert: Best for Heavy-Duty Searing

The Unidanho griddle is a 13-by-17-inch cast iron insert made for gas grills and stove tops. Its design focuses on durability. The listing describes it as a one-piece forged piece of heavy cast iron, which is meant to hold heat well and cook evenly. It is positioned for grilling, searing, and high-temperature cooking.

The most distinctive feature is the X-shaped reinforcement on the bottom. This brace is designed to keep the griddle flat under extreme heat, which helps the cooking surface stay even from edge to edge. A built-in oil groove collects grease and drippings, and sturdy side handles make it easier to lift and move the griddle, even when it is hot.

This model suits cooks who care most about heat retention and a rigid, heavy base. If you like to sear steaks or cook at high temperatures, the thick cast iron construction is an asset. The handles also make it more manageable than many heavy griddles, so you can transfer it between the grill and a table without struggling.

The trade-off is that its surface and finish are less detailed in the listing than some competitors. Its size is also similar to the GORGERILA model, so it offers less cooking area than the 23-by-16-inch options. If you need to cook for a crowd, you may find it limiting. The listing also notes that any defects should be handled through the order details, so keep your purchase information handy in case you need support.

Compared with the other 17-by-13-inch models, this griddle leans toward raw strength and a heavy-duty feel. It is a good choice if performance and durability matter more than a large cooking surface.

Pros:

• Heavy-duty, one-piece forged cast iron for strong heat retention
• X-shaped base brace helps resist warping
• Built-in grease groove helps keep the grill cleaner
• Side handles make it easier to lift and move

Cons:

• Smaller cooking area than the largest options in this guide

Verdict: This is an excellent choice for high-heat searing and durable everyday use. If you need a large cooking surface for crowds, a bigger model will serve you better.

How to Choose the Best Cast Iron Griddle for Your Gas Grill

Choosing a griddle insert is more than picking the biggest one you can find. The right choice depends on your grill, your cooking habits, and how you plan to store and move the griddle. The following factors will help you narrow your options before you buy.

Measure Your Grill First

Before you shop, measure the inside of your grill’s cooking chamber and the grate area. A griddle that is too large may not sit flat, may block the burners, or may not close properly. The five models in this guide range from 13 by 17 inches to 23 by 16 inches, so check the listed dimensions against your grill’s layout. Leave a little room around the edges for airflow and for safe handling with tools.

Think About the Cooking Area You Need

Cooking area determines how much food you can make at once. A 23-by-16-inch griddle suits families and hosts who want to cook breakfast, burgers, and sides together. A 17-by-13-inch model works well for two to four people or for cooks who mainly prepare small meals. Think about your typical meal size, not just your best-case scenario, and choose a surface that matches it.

Look at the Cast Iron Thickness and Build

Cast iron is valued for holding heat, but the thickness and construction affect how well it resists warping. Several listings in this guide mention reinforced bases, thickened walls, or crossbar and X-shaped bracing. These features matter because a griddle that bends or rocks on the grate will cook unevenly and may be unsafe. Look for a sturdy base and consider how the piece feels in your hands when you imagine lifting it.

Consider the Surface Finish

Some griddles arrive pre-seasoned, while others use a coated or enamel-style finish. A pre-seasoned surface can develop a natural nonstick layer over time, but it still needs care and proper seasoning. A coated or enamel surface can be easier for beginners to clean, though it should be treated gently to protect the finish. Read the care instructions and choose a finish that matches how much maintenance you are willing to do.

Check for Grease Control Features

Grease control matters on a gas grill, where dripping fat can cause flare-ups and make a mess. Look for a grease trough, groove, or high sidewalls. Tall sidewalls help keep oil on the surface, while a grease channel is useful for moving drippings away from the food. If you plan to cook fatty foods like bacon or burgers, these features are worth prioritizing.

Evaluate Handles and Portability

A cast iron griddle gets heavy, and the handles will do much of the work when you move it. Side handles make it easier to lift the insert on and off the grill, and detachable handles can help with storage. If you plan to take your griddle camping or to a tailgate, portability should move higher on your list. A smaller, lighter model may be a better fit for those trips.

Include Accessories and Extras

Some options include tools, such as a spatula set, while others sell the griddle alone. If you already have quality spatulas and scrapers, you may not need extras. If you are starting from scratch, a included tool set can save money and time. Compare what is included, but do not let a long list of extras outweigh the basics of size, build, and grease control.

Frequently Asked Questions

Will a cast iron griddle damage my gas grill?

A griddle insert is made to sit on the grates, but it should fit properly and sit level. Avoid placing a griddle over the burners in a way that blocks airflow or traps heat in unsafe ways. Always follow your grill manufacturer’s guidance on accessories and make sure the insert does not block the lid from closing.

Do I need to season a cast iron griddle before using it?

Yes, seasoning is a good idea for most cast iron griddles. Several listings in this guide recommend seasoning before the first use to build a smoother, more nonstick surface and to help protect the metal from rust. Wipe a thin layer of cooking oil over the surface, heat the griddle until the oil polymerizes, and repeat as needed.

Can I use a cast iron griddle on a stove top as well as a grill?

Several of the griddles in this guide are described as universal, meaning they can work on a gas grill, a charcoal grill, or a stove top. Before you use one on a range, check that the size fits your burners and that the griddle sits flat. Use moderate heat at first to avoid thermal stress on the cast iron.

How do I clean a cast iron griddle after cooking?

Let the griddle cool slightly, then scrape off food residue with a spatula or scraper. Wipe away grease with a paper towel or a soft cloth. For stuck-on food, add a little water while the griddle is still warm and scrub gently. Dry it completely, then add a light coat of oil to protect the surface from rust.

Is a bigger griddle always better?

Not always. A larger griddle gives you more cooking space, but it is heavier, harder to store, and may not fit smaller grills. If you cook mainly for yourself or one or two others, a 17-by-13-inch griddle may be more convenient. Choose the size that matches your grill and your typical meal size.

Can I cook delicate foods like eggs and pancakes on cast iron?

Yes, but results depend on the surface and how well it has been seasoned. Preheat the griddle gradually, use a thin layer of oil, and keep the heat at a moderate level. Coated or enamel surfaces tend to release food more easily, while a well-seasoned pre-seasoned surface improves with regular use.

Should I buy a griddle with tall sidewalls?

Tall sidewalls are useful if you cook greasy foods or want to reduce flare-ups and spills. They can also make the griddle deeper and heavier. If you mostly cook lean foods or prefer a low-profile surface for flipping and sliding items, a griddle with shorter edges may suit you better.

Final Recommendation

All five griddles in this guide offer a practical way to add flat-top cooking to a gas grill. The best choice depends on your priorities. If you want the most cooking space and a ready-to-use kit, the BBQ Future model is a strong option. If grease control and indoor versatility matter most, the Onlyfire griddle stands out. For smaller grills and portable use, the Uniflasy model is a good match, while the GORGERILA griddle offers a sturdy, easy-clean option at a medium size. If you care most about heavy-duty searing and a rigid base, the Unidanho model is well suited to high-heat cooking.

Before you buy, measure your grill, decide how many people you usually cook for, and choose the features that solve your biggest cooking problems. With the right size and build, your griddle can become one of the most useful tools on your patio.