Potato Casserole - cooking recipe

Ingredients

1 (2 lb.) pkg. frozen hash brown potatoes
1 c. chopped onion
1 can cream of mushroom soup
2 c. shredded Cheddar cheese
2 c. sour cream
1 stick butter, melted
salt and pepper to taste
1 can Durkee onion rings

Preparation

Preheat oven to 400\u00b0.
Lightly grease a 13 x 9-inch baking pan.