Cheesy Potatoes submitted by Amy S.   Ingredients 2 lbs. hash brown potatoes (thawed) 1/2 cup chopped onion (optional) 1/2 cup margarine (optional) 1 tsp. salt 1 family size can cream of chicken soup 1 tsp. pepper 1 8oz. bag casserole cheese 1 16oz. container of sour cream         Mix all ingredients and bake uncovered in a 9 x 13 baking dish for 45 minutes at 350o Top with shredded cheese, parmesan cheese, or french onion rings and bake for an additional 5-10 minutes.