Begin by placing the boneless chicken breasts flat at the bottom of your crockpot, ensuring they are evenly spaced for optimal cooking.
In a separate mixing bowl, combine the diced tomatoes (be sure to include their juices), black beans, corn, finely diced red bell pepper, chopped onion, and minced garlic. Stir the mixture thoroughly until all ingredients are well blended.
Sprinkle in the ground cumin, chili powder, and a pinch of salt and black pepper over the vegetable mix. Stir again to ensure that the spices are evenly incorporated throughout the mixture.
Carefully pour the prepared vegetable mixture over the chicken breasts in the crockpot, spreading it out evenly to cover the chicken completely.
Pour the chicken broth evenly over the top, making sure the chicken and vegetables are well submerged for maximum flavor infusion.
Secure the lid on the crockpot and select a cooking setting: either low for 6-8 hours or high for 3-4 hours. Cook until the chicken is tender and fully cooked through.
Once cooking is complete, use two forks to shred the chicken directly in the pot. Mix it thoroughly with the vegetables and broth for a cohesive dish.
Taste the mixture and adjust the seasoning with additional salt and pepper if needed.
Notes
Serve with warm tortillas or over rice for a complete meal.