01 - Place chicken breasts at the bottom of the slow cooker.
02 - Add diced onion, minced garlic, diced bell pepper, corn, and black beans over the chicken.
03 - Pour in chicken broth, diced tomatoes with juices, and red enchilada sauce.
04 - Sprinkle ground cumin, chili powder, smoked paprika, dried oregano, salt, and black pepper. Stir gently to combine.
05 - Cover and cook on LOW for 6-7 hours or on HIGH for 3-4 hours, until chicken is tender and fully cooked.
06 - Remove chicken breasts, shred them using two forks, then return shredded chicken to the cooker and stir well.
07 - Taste the soup and adjust seasoning as needed.
08 - Ladle soup into bowls and garnish with optional toppings such as avocado, cheese, sour cream, cilantro, lime wedges, and crushed tortilla chips.