Tuna Casserole
["1 (8 oz.) pkg. noodles", "1 (6 1/2 oz.) can tuna", "1 can cream of mushroom soup", "1/2 c. grated onion", "1 Tbsp. vinegar", "1 soup can milk", "1 c. shredded Cheddar cheese", "1/4 c. Parmesan cheese"]
["Cook noodles according to package and drain.", "Combine tuna, soup, onion, vinegar, milk and Cheddar cheese in a bowl.", "Mix well. Stir in noodles. Spoon into 2-quart baking dish.", "Sprinkle with Parmesan cheese. Bake at 350\u00b0 for 1 hour."]
["noodles", "tuna", "cream of mushroom soup", "onion", "vinegar", "milk", "Cheddar cheese", "Parmesan cheese"]