Tuna-Noodle Casserole
["3 c. medium noodles (4 oz.)", "1 c. chopped celery", "1/4 c. chopped onion", "2 Tbsp. margarine or butter", "1 (10 3/4 oz.) can condensed Cheddar cheese soup", "3/4 c. milk", "1 (9 1/2 oz.) can tuna, drained and broken into chunks", "1/4 c. chopped pimento", "2 Tbsp. grated Parmesan cheese", "1 c. cooked vegetables (optional)"]
["Cook noodles according to package directions; drain.", "In a saucepan, cook celery and onion in margarine or butter until tender.", "Stir in soup and milk.", "Gently stir in tuna (and vegetables, if desired) and the cooked noodles.", "Transfer to a 1 1/2-quart casserole. Sprinkle with Parmesan cheese. Bake at 375\u00b0 for 25 to 30 minutes or until heated through."]
["noodles", "celery", "onion", "margarine", "Cheddar cheese soup", "milk", "tuna", "pimento", "Parmesan cheese", "vegetables"]