Prep the tortillas: For a healthier crunch, preheat the oven to 375°F (190°C).
Toss tortilla strips with a teaspoon of olive oil and a pinch of salt, spread on a baking sheet, and bake for 8–12 minutes until crisp and lightly golden. Set aside.
Sauté the aromatics: Heat 1 tablespoon olive oil in a large pot or Dutch oven over medium heat. Add onion, bell pepper, and jalapeño.
Cook 4–5 minutes until softened and fragrant, stirring occasionally.
Add garlic and spices: Stir in garlic, chili powder, cumin, smoked paprika, oregano, and 1 teaspoon salt. Cook 30–60 seconds until the spices bloom and smell toasty.
Build the broth: Pour in chicken broth and the can of fire-roasted tomatoes with their juices. Bring to a gentle boil.
Poach the chicken: Reduce heat to medium-low and add the chicken breasts or thighs.
Cover and simmer 12–18 minutes, depending on thickness, until cooked through and no longer pink in the center.
Shred the chicken: Transfer the chicken to a cutting board and shred with two forks. Return the shredded chicken to the pot.
Add beans and corn: Stir in black beans and corn. Simmer 5–7 minutes to warm through and let flavors come together.
Finish with freshness: Turn off the heat.
Stir in lime juice and cilantro. Taste and adjust seasoning with more salt or lime as needed.
Serve and garnish: Ladle into bowls and top with baked tortilla strips. Add any optional toppings like avocado slices, a dollop of Greek yogurt, or a sprinkle of cheese.