Begin by placing the chicken breasts at the bottom of your slow cooker, ensuring they are nestled securely.
In a separate mixing bowl, combine the rinsed black beans, drained corn, diced tomatoes (including their juices), tomato paste, diced onion, minced garlic, chicken broth, taco seasoning, and ground cumin. Stir the mixture vigorously until all ingredients are well incorporated.
Gently pour this flavorful mixture over the chicken in the slow cooker, ensuring that the chicken is well covered by the delicious concoction.
Add salt and pepper to the soup according to your personal taste preferences, adjusting as necessary.
Secure the lid on the slow cooker and set it to low for 6-8 hours or to high for 3-4 hours, allowing all the flavors to meld beautifully.
Once the cooking time is complete, carefully remove the chicken breasts from the slow cooker. Use two forks to shred the chicken into bite-sized pieces, then return the shredded chicken back into the soup, stirring to combine.
Serve the hearty soup hot, garnished generously with fresh cilantro leaves, a dollop of sour cream, and a sprinkle of shredded cheese for an irresistible touch.
Notes
Adjust seasoning to taste and serve with toppings for added flavor.