In Dutch oven or large saucepan, sauté onion in oil over medium heat. Add chicken broth, tomatoes with green chilies, chopped green chilies, chicken or turkey breast, beans, corn and rice. Cover and simmer for 20 minutes. Stir in lime juice. Just before serving, pour into soup bowls; top with tortilla chips and shredded mozzarella cheese and optional avocado. Makes 4-6 servings.