Appetizer that goes great with any meal. Substitutions: The mushrooms can be any that you enjoy, but should be easy to lay upside down in the pan, with the stalks up. Some great choices are white, baby bella, oyster, and shiitake - or a combination of more than one is fun. You can remove the bread crumbs without losing much, to lose the extra carbs. Also, adding capers to the mix before baking makes a great addition.