01 - Cut corn tortillas into thin strips and set aside. Rinse and drain black beans. If using frozen corn, measure and set aside.
02 - Place chicken breasts, corn, black beans, salsa, and chicken broth in the slow cooker.
03 - Cover and cook on low for 6-7 hours or on high for 3-4 hours, until chicken is cooked through and tender.
04 - Carefully remove chicken breasts from the slow cooker, shred with two forks, and return to the pot. Stir to combine.
05 - Preheat oven to 400°F (204°C). Arrange tortilla strips on a baking sheet, spray lightly with cooking oil, and bake 8-10 minutes until crisp and lightly browned.
06 - Ladle hot soup into bowls and garnish with crispy tortilla strips, shredded cheddar, cilantro, avocado slices, and a squeeze of lime.