HASHBROWN CASSEROLE

1 small onion
1 cup reduced fat Cheddar cheese
2 Tbsp. margarine
1/2 tsp. pepper
1 32oz package of southern-style hash browns, thawed
16 oz container fat-free sour cream
1 10oz can of reduced fat Cream of Mushroom soup

Spray a baking dish with cooking spray. 
Combine all ingredients and place in baking dish. 
Bake at 350 degrees for 1 hour.

Serving size: 1 cup = 3 POINTS