Baked String Beans
["2 qt. beans", "1/4 c. margarine", "3 Tbsp. flour", "1 c. milk", "2 Tbsp. chopped onion", "1 c. shredded Cheddar cheese", "2 slices bread crumbs", "2 Tbsp. margarine, melted"]
["Cook beans.", "Place in casserole dish.", "In separate saucepan, melt margarine; add milk and flour, stirring until thickened.", "Add onion and cheese.", "Pour sauce over beans.", "Toss bread crumbs with melted margarine.", "Sprinkle on top of beans.", "Bake at 375\u00b0 for 30 minutes, uncovered."]
["beans", "margarine", "flour", "milk", "onion", "Cheddar cheese", "bread crumbs", "margarine"]