Cheezy Potato Casserole - cooking recipe

Ingredients

1 (32 oz.) bag hash brown potatoes
1/2 c. onions
1 c. grated Cheddar cheese
1 c. sour cream
1 can cream of mushroom soup
1 c. melted margarine

Preparation

Preheat oven to 350\u00b0.
Mix all ingredients.
Bake in large casserole dish for 45 minutes.