Tuna Casserole
["1 lb. noodles", "1 chopped onion", "1 stick margarine or butter", "1 medium or large can tuna fish", "1 can peas (if desired)", "2 cans cream of mushroom soup", "1 c. milk", "4 oz. Mozzarella cheese, shredded"]
["Cook noodles as directed; drain and mix with other ingredients, except cheese.", "Place in 9 x 13-inch baking dish and top with cheese.", "Bake in 350\u00b0 oven for 30 minutes or until cheese is melted or browned.", "Makes 6 large servings."]
["noodles", "onion", "margarine", "tuna fish", "peas", "cream of mushroom soup", "milk", "Mozzarella cheese"]