Tuna Macaroni Salad
["1 pkg. macaroni cheese dinner", "1 (7 oz.) can tuna, drained and flaked", "1 (10 3/4 oz.) can cream of celery soup", "1/2 c. milk", "1 Tbsp. chopped onion"]
["Prepare macaroni dinner as usual.", "Combine remaining ingredients in a large bowl; mix well.", "Stir in macaroni and cheese.", "Spoon tuna mixture into a lightly greased 1 1/2-quart baking dish.", "Bake at 350\u00b0 for 18 to 20 minutes or until lightly browned."]
["macaroni cheese", "tuna", "cream of celery soup", "milk", "onion"]