01 - Preheat oven to 400°F. Lightly grease a baking dish with cooking spray or a thin coat of olive oil.
02 - In a small bowl, whisk together the chili powder, smoked paprika, cumin, garlic powder, onion powder, salt, and black pepper until evenly combined.
03 - Place each chicken breast between two sheets of plastic wrap and use a meat mallet or rolling pin to pound to an even 3/8-inch thickness.
04 - Drizzle the pounded chicken breasts with 1 tbsp olive oil, then sprinkle half of the spice blend evenly over both sides of each piece.
05 - Heat the remaining 1 tbsp olive oil in a large skillet over medium heat. Add the sliced red and yellow bell peppers along with the red onion. Sauté for 3 to 4 minutes until just tender but still slightly crisp. Remove from heat and toss with the remaining spice blend.
06 - Lay each seasoned chicken breast flat. Distribute the sautéed pepper and onion mixture evenly across each breast, then sprinkle generously with shredded cheese.
07 - Tightly roll up each chicken breast from one end to the other. Secure each roll with 2 to 3 toothpicks along the seam. Place the rolls seam side down in the prepared baking dish.
08 - Bake for 25 to 30 minutes until the chicken is fully cooked through (internal temperature reaches 165°F) and juices run clear.
09 - Remove from the oven and let the roll ups rest for 5 minutes. Carefully remove toothpicks, slice each roll into pinwheel portions, and serve garnished with fresh chopped cilantro and lime wedges.