1 small onion
1 cup reduced fat cheddar cheese
2 tbsp margarine
1/2 tsp pepper
1 (32 oz) pkg, Southern-style Hash Browns
16oz Container of Fat-Free Sour Cream
1 (10oz) Can Reduced Fat Cream of Mushroom Soup
Pam cooking spray
Spray 9x13 baking dish. Combine all ingrediants
Bake agt 350" for 1 hour