Sauté Vegetables:
Heat the olive oil in a large pot over medium heat. Add the onion and cook for 3–4 minutes until softened. Stir in the garlic, red bell pepper, and jalapeño, cooking for another 2 minutes.
Add Spices:
Sprinkle the cumin, chili powder, and smoked paprika over the vegetables. Stir well to coat and cook for 1 minute to release the flavors.
Simmer the Soup:
Pour in the chicken broth, diced tomatoes (with their juices), black beans, and corn. Bring the mixture to a boil, then reduce the heat and let it simmer for 15 minutes.
Add Chicken:
Stir in the shredded chicken and lime juice. Let the soup simmer for another 5 minutes to heat through. Season with salt and pepper to taste.
Prepare Garnishes:
If using tortilla strips, lightly fry them in a bit of oil until crispy, or use store-bought tortilla chips.
Serve:
Ladle the soup into bowls and top with your choice of garnishes, such as tortilla strips, cheese, avocado, cilantro, or a dollop of sour cream. Serve with lime wedges on the side for an extra burst of flavor.