Broccoli Cheese Soup
["3 c. broccoli, cut", "1/3 c. chopped onion", "1/4 c. margarine or butter", "1/2 c. flour", "1/4 tsp. salt", "1/8 tsp. pepper", "2 c. milk", "1 (10 3/4 oz.) can chicken broth", "5 to 6 slices American cheese", "1 1/2 tsp. prepared mustard"]
["Add broccoli to onion and cook to make broccoli tender; drain. In a medium saucepan, melt margarine; stir in flour, salt and pepper until well blended.", "Add milk gradually and cook until thickened, stirring constantly.", "Add broccoli and remaining ingredients.", "Cook until cheese is melted."]
["broccoli", "onion", "margarine", "flour", "salt", "pepper", "milk", "chicken broth", "American cheese", "mustard"]