Pizza Casserole 2 packages sliced mushrooms 2 bell peppers -- chopped 1 small onion -- chopped - or chives chopped olives 1 small can tomato sauce pepperoni italian sausage -- browned grilled chicken or turkey meat - in bite size pieces whatever cheese you like - shredded bacon pieces maybe a few pieces of pineapple Spray the bottom of a baking pan with Pam. Arrange the mushroom slices to cover the bottom. Pour the tomato sauce over the mushrooms - won't be much so be sparing. Put on the rest of the ingredients in whatever order you like and top with cheese. Bake at 400 for about 20 minutes. Let sit for a few minutes. Cut and serve with nice salad.