2 c. leftover mashed potatoes
2 onions, chopped
4 stalks celery, chopped
1/4 c. grated cheese
1 c. diced ham or skinless kielbasa (optional)
1 c. instant non fat dry milk
Oyster crackers (optional)

Cook onions and celery in 4 cups water until tender. Add mashed potatoes and diced ham. Stir and cook until smooth. Add dry milk. Whip surface lightly to dissolve. Serve in soup bowls with grated cheese and oyster crackers. 4 servings.