Slow Cooker Leftover Ham and Potato Soup

Ingredients:
3 cups leftover mashed potatoes
1 1/2 cups chopped leftover ham
2 stalks celery, chopped
1/2 onion, chopped
2 cloves garlic, minced
2 beef bouillon cubes
3 cups water
1 cup milk
1 1/2 teaspoons parsley flakes
1/2 teaspoon pepper
Chili sauce (optional)
Oyster crackers (optional)

Directions:
In a small slow cooker, combine all ingredients except chili sauce and oyster crackers. Stir together. Cover. Cook on high for 4-5 hours, until celery and onion are softened and soup is fragrant. Serve with chili sauce and oyster crackers if desired. 

Found at http://www.getcrocked.com/2012/04/10/crock-pot-leftover-ham-and-potato-soup/