Pizza Casserole
["1 lb. ground beef", "1/2 tsp. salt", "8 oz. elbow macaroni, cooked and drained", "4 oz. pepperoni, sliced", "1 large onion, chopped", "1 (16 oz.) can pizza or spaghetti sauce", "2 c. (8 oz.) shredded Mozzarella cheese"]
["In a skillet, brown beef and onion.", "Drain any fat.", "Add remaining ingredients. Spoon into a greased 2-quart casserole. Top with cheese and pepperoni.", "Bake at 350\u00b0 for 40 minutes."]
["ground beef", "salt", "elbow macaroni", "pepperoni", "onion", "pizza", "Mozzarella cheese"]