Hash Brown Casserole - cooking recipe

Ingredients

1 1/2 c. chopped onion
3 Tbsp. all-purpose flour
1/2 tsp. dry mustard
1/4 tsp. salt
1 1/4 c. skim milk
1/2 c. low-sodium chicken broth
1 1/2 c. (6 oz.) shredded, reduced-fat sharp Cheddar cheese
3/4 c. (3 oz.) shredded Swiss cheese
1/2 tsp. pepper
1 c. nonfat sour cream alternative
1 (32 oz.) pkg. frozen Southern-style hash brown potatoes, thawed
paprika

Preparation

Coat a medium saucepan with vegetable 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 from heat; gradually add milk and broth, stirring with a wire whisk until blended.
Cook over medium heat 5 minutes or until thickened, stirring constantly.
Remove from heat; add cheeses and pepper, stirring until cheeses melt. Stir in sour cream.