Potato Casserole - cooking recipe

Ingredients

2 lb. frozen hash browns or 2 lb. potatoes, sliced thin
1 lb. Velveeta cheese
1/2 pt. sour cream (8 oz. carton)
1 can mushroom soup
1 stick margarine
1/4 c. chopped onion

Preparation

Melt margarine, then saute onion until clear.
Grate cheese and mix everything together except potatoes.
When ready to bake, add potatoes and bake at 350\u00b0 for 1 hour.
Serve while warm.