Combine ground meat, onion, and garlic in large stockpot and stir over medium heat until meat is browned. Drain.

Stir in chili powder, salt, oregano, tomatoes, and tomato sauce; break up tomatoes while stirring. Heat to boiling, reduce heat to simmer, and cover. Cook, stirring occasionally for 1 hour.

Stir in beans. Simmer uncovered for 20 minutes; stir occasionally.