1. Heat a 5 1/2- to 6-quart pot over medium high. Add turkey and pepper; cook until brown. Transfer to a bowl.
2. Heat oil in pot over medium. Add onion and garlic; cook until soft (10 minutes). Stir in chilies, cumin, and oregano; cook 1 minute. Add turkey, beans, and broth; cook, covered (1 hour).
3. Whisk cornmeal into milk. Add to chili. Serve.