Hash Brown Casserole

2 lbs of frozen hash browns.
½ cup of melted margarine or butter.
1 (10 ¼ ounce) can cream of chicken soup.
1 Pint of sour cream.
½ cup of peeled and chopped onion. (OPTIONAL)
2 cups of grated cheddar cheese.
1 tsp of salt.
¼ tsp of pepper.

Mix all the ingredients together in a large bowl then transfer to a sprayed 11×14 baking dish.

Preheat the oven to 350° bake for 45 minutes.