Creamy Broccoli Soup Au Gratin
["2 Tbsp. butter or margarine", "1/2 c. chopped onion", "1 3/4 c. water", "1 pkg. Uncle Ben's Country Inn brand broccoli rice au gratin", "1/4 c. flour", "1/4 c. tsp. dry mustard", "1 3/4 c. chicken broth of bouillon", "2 c. milk", "1/2 c. shredded American cheese", "1 green onion cut into short thin strips (optional)"]
["Cook onion in butter until tender.", "Add water and contents of rice and seasoning packets.", "Bring to a boil.", "Reduce heat.", "Cover and simmer 20 minutes.", "Combine flour and dry mustard in a small bowl.", "Gradually add about 1/2 cup broth, stirring until smooth. Stir remaining broth, flour mixture and milk into rice mixture. Heat to simmer stirring occasionally.", "Stir in cheese.", "Sprinkle with green onion."]
["butter", "onion", "water", "Uncle Ben's", "flour", "dry mustard", "chicken broth of bouillon", "milk", "American cheese", "green onion"]