Spaghetti Pie
["1 lb. spaghetti", "1/4 c. butter", "1/3 c. Parmesan cheese", "1 1/2 lb. cooked hamburger", "1 diced onion", "1 (8 oz.) can mushrooms", "1 jar spaghetti sauce", "1 lb. cottage cheese", "8 oz. Mozzarella cheese"]
["Cook spaghetti.", "Mix with butter and Parmesan cheese.", "Spread in pan like you would for pie."]
["spaghetti", "butter", "Parmesan cheese", "hamburger", "onion", "mushrooms", "spaghetti sauce", "cottage cheese", "Mozzarella cheese"]