In a large pot, cook beef, onion, green pepper, and garlic over medium-high heat for about 8 minutes. Stir occasionally until beef is brown; drain and return to heat.
Stir in remaining ingredients except for the beans. Heat to boiling. Reduce heat to low; cover and simmer 1 hour, stirring occasionally.
Stir in beans. Heat to boiling. Reduce heat to low; simmer uncovered about 20 minutes, stirring occasionally until desired thickness is reached.