Creamy Broccoli-Chicken Casserole
["2 tsp. margarine", "1/2 c. diced onion", "1 Tbsp. plus 1 1/2 tsp. all-purpose flour", "1 c. skim milk", "2 oz. Cheddar cheese, shredded", "dash of salt and pepper", "6 oz. skinned, boned, cooked chicken, diced", "1 c. cooked, chopped broccoli", "1/2 c. cooked macaroni shells", "1/2 c. chopped, drained canned pimentos"]
["Preheat oven to 375\u00b0.", "In small saucepan, heat margarine until bubbly and hot; add onion and saute briefly (do not brown).", "Add flour and stir quickly to thoroughly combine; remove from heat and gradually stir in milk, stirring until thoroughly blended.", "Return to heat and cook, stirring occasionally, until sauce is thick and creamy, about 2 minutes.", "Remove from heat and stir in salt and pepper."]
["margarine", "onion", "all-purpose flour", "milk", "Cheddar cheese", "salt", "chicken", "broccoli", "macaroni shells", "pimentos"]