Potato Pizza
["1 lb. hamburger", "1 medium onion", "4 c. peeled, thinly sliced potatoes", "16 oz. can tomato sauce", "1 can Cheddar cheese soup", "1/2 soup can milk", "1 tsp. sugar", "1 tsp. oregano", "grated Parmesan", "salt and pepper", "6 oz. sliced Mozzarella", "2 Tbsp. margarine"]
["Brown hamburger.", "Place in 13 x 9-inch greased pan.", "Top with a layer of thinly sliced onion and potatoes.", "Mix soup and milk; pour over meat, potato and onion mixture.", "Mix tomato sauce with sugar, oregano and salt and pepper.", "Pour over soup mixture.", "Dot with margarine.", "Cover with foil and bake at 375\u00b0 for 45 minutes. Uncover and top with Mozzarella and Parmesan.", "Bake an additional 15 minutes."]
["hamburger", "onion", "potatoes", "tomato sauce", "Cheddar cheese soup", "milk", "sugar", "oregano", "Parmesan", "salt", "Mozzarella", "margarine"]