If you haven't already, cook your chicken breast until fully cooked. You can boil, bake, or even use a rotisserie chicken for convenience! Shred it into bite-sized pieces and set aside.

In a large pot over medium heat, add a drizzle of olive oil. Sauté the chopped onion for about 3-4 minutes until translucent. Then, add the minced garlic and sauté for an additional minute until fragrant.

Stir in the shredded chicken, black beans, corn, diced tomatoes, taco seasoning, and chicken broth. Season with salt and pepper to taste.

Bring the mixture to a boil, then reduce the heat and let it simmer for about 20 minutes to allow the flavors to meld together beautifully.

After 20 minutes, taste your soup! Feel free to adjust the seasoning if needed to suit your preferences.

Ladle the soup into bowls, and let everyone customize their bowls with the optional toppings of shredded cheese, sour cream, and cilantro!