Hash Brown Potato Casserole

Serving Size: 1 cup
WW Points per Serving: 3

1 small onion
1 cup Reduced-fat Cheddar cheese
2 tbsp. Margarine
1/2 tsp. Pepper
1 (32 oz.) package of southern-stype hash browns (thawed)
16 oz. container of fat-free sour cream
1 - 10 oz. can of Reduced-fat Cream of Mushroom soup
Pam cooking spray

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