Chicken Tetrazzini
["1 (5 oz.) pkg. spaghetti, broken into 2-inch pieces", "1 can cream of celery soup", "1/2 c. milk", "2 cans chicken, drained", "1 (3 oz.) can mushrooms, undrained", "1/3 c. onion, chopped", "1/2 c. mayonnaise", "8 oz. shredded Cheddar cheese", "2 c. cornflakes"]
["Cook spaghetti.", "Combine first 7 ingredients in a 9 x 13-inch baking dish.", "Top with cheese; then cornflakes.", "Cook at 350\u00b0 for 45 minutes."]
["cream of celery soup", "milk", "chicken", "mushrooms", "onion", "mayonnaise", "Cheddar cheese", "cornflakes"]