Zucchini Casserole
["3 large or 6 small zucchini, sliced", "3 Tbsp. margarine", "minced onion and Parmesan cheese", "1 can tomato sauce", "Mozzarella cheese"]
["Cook zucchini, onion and Parmesan in margarine until cooked down.", "Add 1 can tomato sauce.", "Layer Mozzarella cheese on top until it melts."]
["zucchini", "margarine", "onion", "tomato sauce", "Mozzarella cheese"]