Chipotle Chicken and Rice Soup

• 2 tablespoons canola oil
• 1 large onion peeled, diced
• 1 large green pepper diced
• 2 large chicken breast halves each cut in half
• 4 cups water divided
• 8 cups homemade chicken stock or fat-free, less-sodium broth or more as needed
• 28 ounces stewed tomatoes
• 4 ounces diced green chilies
• 1 chipotle chili in adobo sauce diced
• 2 tablespoons chili powder or more to taste
• 1 ½ to 2 teaspoons favorite all purpose seasoning
• 1 ½ cups cooked Spanish-style rice
• Salt to taste

For Serving

• Baked tortilla strips see note
• Shredded Mexican-style cheese optional
• Diced avocado optional