Pizza Casserole
["1 (7 oz.) pkg. spaghetti noodles", "2 Tbsp. butter or margarine", "1/3 c. grated Parmesan cheese", "2 eggs, well beaten", "1 lb. ground beef", "1 small onion, chopped", "1 large (32 oz.) jar spaghetti sauce", "3 to 4 c. shredded Mozzarella cheese", "1 (3 1/2 oz.) pkg. sliced pepperoni"]
["Cook noodles according to package instructions.", "Rinse and drain; combine with butter, Parmesan cheese and eggs.", "Brown beef with onion; drain.", "Spoon on top of spaghetti noodles.", "Pour spaghetti sauce over all and sprinkle liberally with Mozzarella cheese.", "Arrange slices of pepperoni over surface.", "Cover with aluminum foil.", "Let it bake in preheated oven at 350\u00b0 for 20 minutes.", "Remove foil; continue baking 15 minutes.", "Let stand 5 to 10 minutes before cutting into pieces."]
["noodles", "butter", "Parmesan cheese", "eggs", "ground beef", "onion", "spaghetti sauce", "Mozzarella cheese", "pepperoni"]