01 - In a bowl, toss the chicken strips with olive oil, chili powder, cumin, smoked paprika, salt, and black pepper.
02 - Heat a large nonstick skillet over medium-high heat. Add the seasoned chicken and sauté for 4-5 minutes, or until cooked through and lightly browned. Remove chicken from the pan and set aside.
03 - In the same skillet, add a little more oil if needed. Sauté the peppers, onion, and garlic for 4-5 minutes until softened and slightly caramelized. Return the cooked chicken to the pan, toss to combine, then remove from heat.
04 - Wipe the skillet clean. Place a tortilla in the skillet over medium heat. On half of the tortilla, spread a quarter of the cheese and a quarter of the chicken-pepper mixture. Fold the tortilla over to enclose the filling.
05 - Cook for 2-3 minutes per side, pressing gently, until the tortilla is golden brown and the cheese is melted. Repeat with remaining tortillas and filling.
06 - Cut each quesadilla into wedges. Serve hot with sour cream, salsa, cilantro, and lime wedges if desired.