Green Bean Au Gratin
["2 Tbsp. butter", "2 Tbsp. flour", "1/2 tsp. salt", "1/8 tsp. dry mustard", "3/4 cup milk", "1/4 cup grated Longhorn cheese", "1 pkg. frozen or a 16 oz. can of French style green beans", "Paprika", "Slivered almonds", "Parmesan cheese", "1/3 cup fried onion rings"]
["Make a white sauce with the first five ingredients.", "When thick, add cheese and melt.", "Stir in green beans and pour into buttered 1 quart casserole dish.", "Sprinkle with Parmesan cheese, almonds and paprika.", "Bake uncovered 30 minutes at 350\u00b0.", "Put onion rings on top during last 5 to 10 minutes of cooking time."]
["butter", "flour", "salt", "dry mustard", "milk", "Longhorn cheese", "green beans", "Paprika", "almonds", "Parmesan cheese", "onion"]