Heat the olive oil in a large pot over medium heat. Add the onion and garlic and cook, stirring occasionally, until the onion is softened, about 5 minutes.
Add the chili powder, cumin, oregano, salt, and pepper and cook, stirring, for 1 minute.
Add the chicken broth, enchilada sauce, tomatoes, chicken, corn, and beans and stir to combine. Bring to a boil, reduce the heat, and simmer for 10 minutes.
Stir in the cheese and cilantro and simmer for 5 minutes. Serve with tortilla chips.
Interesting Facts
This soup can be made in a slow cooker. Add all the ingredients to the slow cooker and cook on low for 6-8 hours.
This soup can be frozen for up to 3 months. Thaw in the refrigerator overnight before reheating.
You can add other ingredients to the soup such as diced bell peppers, diced jalapeños, or green chiles.