Cheesy Potato Casserole - cooking recipe

Ingredients

2 lb. bag hash brown potatoes
1 1/2 sticks margarine
1 c. chopped onion
8 oz. shredded Cheddar cheese
1 (10 1/2 oz.) can cream of mushroom soup
1 tsp. salt
1 pt. sour cream
1 (4 oz.) can mushrooms (optional)

Preparation

Thaw potatoes completely.
Saute onions in margarine until tender in small saucepan.
Add cream of mushroom soup and sour cream; stir over medium heat until begins to bubble.
Place thawed potatoes and mushrooms in 9 x 13-inch pan.
Sprinkle on salt. Pour mixture over the top.
Sprinkle on cheese.
Bake at 350\u00b0 for 1 1/2 to 2 hours or until potatoes are tender.