I've got 15 and 18 inch Pata Negras that I bought through La Tienda. The 18 fits my 22.5 kettle though It's a tight fit and the lid doesn't seat as it would without it but you really don't need to worry about that anyway. The lid keeps you from having to cover the dish in paper or aluminum afterwards to heat up the top. Cooking outside with some smoke takes this dish to another level. Once you get going paella cooks pretty quickly. You should have your steps down before you begin.