cracker barrels hash brown casserole

how do i make hash brown casserole?
you know the hash brown casserole at cracker barrel?…well i love it and want to know the recipie..thanks
A hash brown casserole recipe made with sour cream, cheese, and frozen hash brown potatoes.
Ingredients:
1 pkg. frozen hash brown (country style – 30oz)
1 cup sour cream
1 stick margarine (4 oz)
1 can cream of chicken soup
1 T. instant minced onion (or freshly chopped onion to taste)
2 cups shredded sharp cheddar or colby cheese
Preparation:
Melt margarine.
Place hash brown in 9 x 13 dish.
Pour margarine over and mix well.
Mix sour cream, soup, onion, and cheese in a large mixing bowl.
Pour hash browns in the bowl and mix all together well. Then put all back in the 9 x 13 pan.
Bake uncovered at 350 degrees for one hour.
(You may cover with crushed cornflakes if desired before cooking)