1. Sauté onion and next 4 ingredients in hot oil in a Dutch oven over medium heat 2 to 3 minutes or until onion is tender and fragrant. Add garlic, and cook 1 minute.
2. Stir in tomatoes and next 4 ingredients until well blended. Stir in chicken. Cover, reduce heat to low, and cook 2 hours. Shred chicken with two forks in Dutch oven. Add black beans, and cook 10 more minutes. Stir in salt. Serve with desired toppings.
Note: Store any leftovers in an airtight container in the refrigerator up to 2 days, or freeze up to 3 months. Thaw in refrigerator. When reheating, add water or canned broth to reach desired consistency.