Big Green Egg | Full Cast Iron Searing GridOur Cast Iron Searing Grids Hold Heat to A Restaurant Standard, Ensuring You Get Lovely Char Marks & Rich Flavours from Your Steaks, Vegetables, & Fish The Large Cast Iron Searing grid is also compatible with the Large EGGspander System. THE BENEFITS OF CAST IRON ARE GAME CHANGING Better heat retention means incredible crusts, chars, and barks, whether you're cooking meat, fish or veg. And because cast iron is seasoned, flavourful oils and fats work