1In Dutch oven or 4-quart saucepan, heat oil over medium-high heat. Cook onion, bell peppers and garlic in oil 5 minutes, stirring occasionally, until tender. Add taco seasoning mix; cook and stir 1 minute.
2Stir in broth, chicken and beans. Heat to boiling; reduce heat. Cover; simmer 20 minutes, stirring occasionally, until thoroughly heated. Top each serving with cheese. Garnish with sour cream and green onions.