Portobello Mushroom Pizza

Preheat oven to 350. Clean the mushrooms (I do leave the gills in just rinse well) and then sprinkle with olive oil and Italian seasoning on both sides. Put foil down on cookie sheet and place mushrooms on foil, gill side up. Add crushed garlic, pizza sauce, thinly sliced onions, peppers, zucchini, and spinach leaves. Sprinkle some more Italian seasoning and then top with mozzarella cheese. Bake for @ 30 minutes. Very yummy! Even Dad liked them.

I used 4 mushrooms, 3/4 of a pepper, 1/2 small onion, 1/4 of a zucchini, and 1 cup of spinach leaves.
Picture below. The ones on the right are before cheese.