2 lbs. stew beef
1 (16 oz.) can green beans or peas
2 lg. carrots, sliced thin
2 onions, chopped
1 lg. potato, peeled & cubed
1 1/2 tsp. salt
1/4 tsp. pepper
1 can mushroom soup (or tomato or celery soup instead)
1 1/2 soup cans water, more if needed

Preheat oven to 275 degrees. Place meat in a large casserole and add vegetables, soup and water. Do not stir. Cover tightly and cook 5 hours.