Flat Mushrooms are large white mushrooms which have more flavour than the smaller varieties. They are earthy and rich with exposed gills.
These large mushrooms can be filled with your preferred flavours and ingredients then baked or grilled. For a simple but tasty option, try slicing then sautéing with garlic and olive oil.
Let us settle the mushroom debate; do not peel or remove stalks. The more mushroom the better.