In a medium saucepan over medium heat, cook beef, onion and celery until beef is browned and vegetables are tender. Drain off fat.
Add 2 cups water, beans, tomatoes, cabbage, chili powder and salt, and bring to boil. Reduce heat and simmer, covered, until cabbage is tender, about 20 minutes. Top each serving of cabbage patch chili with mashed potatoes, if desired.