Preparation:
- Heat oil in a large pot over medium-high heat. Add onions, and cook until tender, about 5 minutes.
- Stir in broth, tomatoes, salt and pepper, and bring mixture to boil. Stir in chicken, corn and beans, and reduce to simmer. Cook until chicken is heated through, about 5 minutes.
- Garnish with tortilla strips, avocado, sour cream and cilantro.
Tip: Substitute tortilla strips with tortilla chips!