10 1/4 oz. can cream of mushroom soup
1/2 c. milk
1/2 tsp. salt
1/2 c. onions, minced
1/4 tsp. pepper
4 c. potatoes, sliced

Mix above ingredients together except potatoes. Place 1/2 potatoes in casserole and cover with 1/2 of mixture. Repeat. Cover and bake in a 350 degree oven 1 hour then uncover and bake 15 to 30 minutes longer.