1 lb. ground beef
2 tbsp. chopped onion
5 med. potatoes, peeled and sliced
1/2 c. sliced mushrooms
1 (10 oz.) can vegetable beef soup
3/4 c. water
1 tsp. salt
1 (3 oz.) can French fried onion rings

Preheat oven to 350 degrees. Crumble ground beef with onion in skillet. Brown over medium heat; drain. Combine all ingredients except onion rings in 12x8-inch baking pan. Cover. Bake for 30 minutes. Stir. Bake uncovered 1 hour, or until potatoes are tender. Sprinkle onion rings over top of casserole. Bake 5 minutes. Serves 4-6.