Upgrade your outdoor kitchen with durable, heat-distributing grill inserts that convert standard grills into full-featured griddles. This guide highlights five top-rated options designed for universal compatibility, helping you grill everything from breakfast to Teppanyaki-style dishes with ease. Each pick emphasizes nonstick performance, easy cleanup, and robust construction for outdoor use.
| Product | Brand | Approx. Size | Key Benefit |
|---|---|---|---|
| Griddle for Gas Grill, 17″ x 13″ | Uniflasy | 17″ x 13″ | Universal fit; nonstick; easy to move |
| Utheer 25″ x 16″ Griddle | Utheer | 25″ x 16″ | Pre-seasoned cast iron; grease trough |
| BBQ Future Universal Griddle, 23″ x 16″ | BBQ Future | 23″ x 16″ | Large cooking area; nonstick cast iron |
| Weber Outdoor Griddle Insert | Weber | Large full surface | Fits multiple Weber models; pre-seasoned |
| MOASKER Flat Top Griddle Insert 17″ x 13″ | MOASKER | 17″ x 13″ | Universal fit; grease groove; high-sidewalls |
Uniflasy 17″ x 13″ Gas Grill Griddle Insert

The Uniflasy griddle is a 17 x 13-inch cast metal surface designed to fit most gas, charcoal, and electric grills. It delivers a nonstick coating for easy cleanup and a flat cooking area ideal for breakfast items, vegetables, and Teppanyaki-style cooking. The design includes a handle for portability and sidewalls to help contain splatter, making it suitable for tailgating and backyard cooking.
Features include universal compatibility, durable construction, and a grease-minimizing surface. The product emphasizes a straightforward setup with minimal maintenance and efficient heating for even cooking across the surface. It is well-suited for Weber, Charbroil, Camp Chef, and other major brands, as long as dimensions match your grill grate.
Utheer 25″ x 16″ Pre-Seasoned Cast Iron Griddle

Utheer offers a 25″ x 16″ pre-seasoned cast iron griddle designed for gas and charcoal grills. Its heavy-duty construction resists warping, and reinforced ridges promote even heat distribution to reduce hot spots. A built-in grease trough aids cleanup, while detachable side handles provide convenient lifting and transport. The large surface is ideal for parties, camping, and tailgating where a broad cooking area is beneficial.
Key benefits include enhanced heat retention, a durable, nonstick-like surface from seasoning, and stability through reinforced support ridges. Its universal fit and grease management system address common grilling challenges, making it a solid choice for long outdoor cooking sessions.
BBQ Future Universal Cast Iron Griddle Insert

This BBQ Future griddle plate covers 23″ by 16″ and includes a spatula set. The thick cast iron is forged for rapid heating and even warmth distribution, helping to avoid hot spots while delivering consistent results. The surface is designed to be nonstick and easy to clean, with a large cooking area that fits most gas and electric grills as well as outdoor burners. Its robust construction supports frequent outdoor use for camping and parties.
The kit includes a spatula set, adding convenience for flipping and turning. The product emphasizes a long-lasting, warp-resistant build with a focus on health-conscious cooking due to its naturally seasoned surface. The large deck area supports a wide range of foods, from veggies to proteins to breakfast items.
Weber Rust-Resistant Outdoor Griddle Insert

Weber’s outdoor griddle insert transforms Spirit, Spirit II, and Searwood grills into a full griddle surface. It’s pre-seasoned and ready to use, designed for durability and rust resistance. The insert provides a large cooking area to accommodate a family-sized meal and supports a seamless griddling experience across different Weber models.
Users benefit from the ability to convert an existing grill into a griddle-centric cooking station without new equipment. The insert’s full-surface approach enables consistent high-heat cooking and easy cleanup, making it a practical choice for households already invested in Weber’s ecosystem.
MOASKER 17″ x 13″ Flat Top Griddle Insert

MOASKER’s 17″ x 13″ griddle insert is designed for universal compatibility with gas and charcoal grills, stoves, and outdoor burners. The cast iron surface is thickened for durability and high heat tolerance, with a grease groove to simplify cleanup. An added handle aids transport, and extra-high sidewalls help prevent splashes and keep food on the plate during flipping. The design targets everyday grilling and tailgating needs with a focus on reliable performance.
Buying Guide: Key Purchase Considerations
- Size and fit: Measure your grill’s cooking space and grate dimensions to ensure the insert sits flat without overhang. Universal designs are common, but dimensions vary enough to affect compatibility.
- Material and seasoning: Cast iron provides excellent heat retention but requires seasoning and regular oiling to maintain nonstick properties and prevent rust. Treasury-grade options often feature pre-seasoned surfaces for immediate use.
- Heat distribution: Look for reinforced ridges, grease channels, and sidewalls that minimize flare-ups and distribute heat evenly to avoid hot spots.
- Cleanup and maintenance: Nonstick coatings simplify cleaning, while grease grooves help channel drippings away from food. Detachable handles can aid in storage and transport.
- Durability and portability: Heavy-duty cast iron is robust but heavier; consider weight if you plan frequent transport for camping or tailgating. Detachable components can improve handling.
- Brand compatibility: Many inserts claim universal fit, but verify compatibility with your grill brand and model, especially for Weber, Char-Broil, Camp Chef, and Nexgrill systems.
Comparison Overview
Across the selected inserts, size, material, and features differ. Larger surfaces offer more cooking space but may require a bigger grill footprint. Cast iron often provides superior heat retention and searing, yet demands seasoning and maintenance. Nonstick variants offer easier cleaning, with some models including grease management features to reduce flare-ups. For those prioritizing ease of setup and broad compatibility, pre-seasoned inserts from reputable brands like Weber provide quick, reliable performance. Tailgaters and campers may prefer heavier, reinforced designs with built-in grease troughs for long sessions.
Overall,選 choosing a gas grill insert depends on grill size, cooking style, and maintenance willingness. The five options highlighted balance universal fit with durable materials and practical features for diverse outdoor kitchens.