This is Grandma Mahaffie's (slightly edited) recipe and a favorite of Aaron's -- he'll go back for thirds if there's enough. I recommend letting it bake longer than you might expect -- it takes those potatoes a long time to be cooked through.

Ingredients:
32 oz. package of refrigerated diced potatoes
1/2 large onion, diced
1 and 1/3 tsps. salt
1/2 tbsp. black pepper
1 can cream of chicken soup
16 oz. sour cream
1/2 cup melted butter
2 cups shredded cheddar cheese

Mix all ingredients and spread in 9" x 13" casserole dish. Bake 1.5 hours in a 350 degree oven or until potatoes are tender.

-- Marijean Jaggers