Creating Slow Cooker Tortilla Soup is straightforward with these easy-to-follow steps:

1. Prepare the Chicken: Place the chicken breasts at the bottom of the slow cooker.
2. Add the Vegetables: Layer the diced tomatoes, black beans, corn, onion, garlic, and bell pepper on top of the chicken.
3. Add Broth and Spices: Pour in the chicken broth and sprinkle the chili powder, cumin, salt, and pepper over the ingredients.
4. Stir Ingredients: Gently stir to combine all the ingredients, ensuring the chicken is submerged in the broth.
5. Slow Cook: Cover the slow cooker and set it to low for 6-8 hours or high for 3-4 hours.
6. Shred the Chicken: Once cooked, remove the chicken breasts, shred them using two forks, and then return them to the soup.
7. Taste and Adjust Seasoning: Give the soup a good stir and taste. Adjust seasonings if needed.
8. Serve Hot: Ladle the soup into bowls, garnishing with tortilla strips, fresh cilantro, cheese, avocado slices, and a squeeze of lime.

By following these steps, you will have an incredible pot of Slow Cooker Tortilla Soup ready to impress your friends and family!