Given the task definition and input, reply with output. In this task, you have to generate the title of the recipe given its required ingredients and directions.

ingredients: '1 1/2 cups onions, chopped', 'vegetable oil cooking spray', '3 tablespoons all-purpose flour', '1/2 teaspoon dry mustard', '1/4 teaspoon salt', '1 1/4 cups skim milk', '1/2 cup nonfat chicken broth', '1 1/2 cups low-fat cheddar cheese', '3/4 cup lowfat swiss cheese', '1/2 teaspoon pepper', '8 ounces fat free sour cream', '32 ounces frozen southern style hash brown potatoes, thawed', 'paprika',<sep> directions: 'Coat a medium saucepan with cooking spray; place over medium heat until hot. Add onion, and saute 3 minutes or until tender.', 'Add flour, mustard, and salt; stir well, and cook an additional minute. Remove form heat; gradually add milk and broth, stir in with a wire whisk until blended.', 'Cook over medium heat 5 minutes or until thickened, stirring constantly.', 'Remove from heat; add cheeses an pepper, stirring until cheeses melt. Stir in sour cream.', 'Combine cheese mixture and potatoes; stir well.', 'Spoon into a 13 x 9 x 2' baking dish coated with cooking spray.', 'Sprinkle with paprika.', 'Cover and bake at 350: for 35 minutes.', 'Uncover and bake an additional 35 minutes.'
Hash Browns Casserole Ii