Brown ground beef and chopped onions in skillet. Drain. Peel and slice potatoes. Boil potatoes for 15 to 20 minutes until half cooked. Drain. Add both cans of soup and 1/2 cup water to ground beef in skillet. Mix. Add potatoes and mix to coat all potatoes. Cook over medium heat for 30 minutes until potatoes are fully cooked. Salt and pepper to taste. Serve with salad and a side vegetable.