Creating this delightful Crockpot Chicken Tortilla Soup is straightforward. Follow these steps for a delicious result:

1. Prepare Chicken: Place the boneless, skinless chicken breasts at the bottom of the crockpot.
2. Add Vegetables: Layer the chopped onion, minced garlic, black beans, corn, and diced tomatoes over the chicken.
3. Season: Sprinkle the chili powder, cumin, paprika, salt, and black pepper evenly over the ingredients.
4. Pour Broth: Carefully pour the chicken broth over all the ingredients, ensuring everything is well covered.
5. Cook: Cover the crockpot and set it to cook on low for 6-8 hours or high for 3-4 hours.
6. Shred Chicken: Once cooked, remove the chicken breasts and shred them using two forks. Return the shredded chicken to the crockpot.
7. Add Lime Juice: Stir in the lime juice for a zesty kick.
8. Taste and Adjust: Taste the soup and adjust seasoning if necessary.
9. Serve: Ladle the soup into bowls and top with tortilla chips, shredded cheese, fresh cilantro, avocado, and a dollop of sour cream if desired.

By following these steps, you can create a flavorful and satisfying meal that everyone will enjoy.