Turn ON the Instant Pot. Add the olive oil, tomatoes, corn and black beans.
Next, add the carrot and celery, if using, along with the garlic, chicken breasts and all the spices. Pour in the chicken broth.
Stir, close lid and press Manual/Pressure Cook for 8 minutes. In DUO, set vent to sealing. In ULTRA, press start. Let pressure release naturally for 5 minutes (NPR 5), then release remaining pressure manually (QR). Once the pin drops, open lid.
Shred the Chicken, Garnish & Serve
Remove chicken breasts and shred them using two forks.
Put the shredded chicken back in the soup.
Finish with chopped cilantro and a squeeze of lime. Ladle into bowls and top with your favorite toppings - cheese, sour cream, avocado and tortilla chips!
Alternative Method: Stovetop Recipe
Start by placing a tall stock pot on medium-high heat. Add all the ingredients to the pot, give it a stir and let it come to a boil.
Reduce the heat to medium, cover and let it cook for about 20 minutes, or until the chicken is tender enough to shred.
Once its done, turn off the heat, shred your chicken and add it back to the pot. Finish with chopped cilantro and a squeeze of lime. Serve with your favorite toppings - cheese, sour cream, diced avocado or tortilla chips!
Slice the chicken, if necessary. If your chicken breast is thicker than 1-inch, slice them through the middle, or increase the cook time to 10 minutes.
Use chicken thighs. If you prefer dark meat chicken thighs (boneless skinless), reduce the cook time to 7 minutes.
Make it spicy. If you like spicy chicken tortilla soup, you can add some cayenne while cooking. Alternatively, serve some hot sauce or sriracha on the side.
Make it bean-free. Use 3 cups frozen corn (one whole bag) to replace the volume of black beans in the recipe.
Cook it in the slow cooker. Simply add all the ingredients to your slow cooker. Cook on LOW for 6-8 hours or HIGH for 3-4 hours.
Store in an airtight container in the fridge or freezer. It will keep for up to 5 days in the fridge or 3 months in the freezer. Reheat as instructed in post.
Note: The nutrition facts below are my estimates and do not include toppings. If you are following any diet plan, I recommend cross-checking with your preferred nutrition calculator.