01 - Preheat oven to 400°F (200°C). Lightly grease a baking dish.
02 - In a small bowl, mix chili powder, smoked paprika, cumin, garlic powder, onion powder, salt, and pepper.
03 - Place chicken breasts between two sheets of plastic wrap and pound to about 0.4 inches thickness.
04 - Drizzle chicken with 1 tbsp olive oil and sprinkle each side with half of the spice mix.
05 - In a large skillet over medium heat, add remaining olive oil. Sauté the sliced peppers and onion until just tender, about 3–4 minutes. Remove from heat and toss with the remaining spice mix.
06 - Lay each chicken breast flat and top with an even layer of sautéed peppers and onion, then sprinkle with cheese.
07 - Roll up tightly and secure each roll with toothpicks. Arrange seam side down in the prepared baking dish.
08 - Bake for 25–30 minutes, or until chicken is cooked through and juices run clear.
09 - Let rest for 5 minutes. Remove toothpicks, slice, and serve garnished with cilantro and lime wedges if desired.