01 - In a medium bowl, combine shredded chicken with cumin, smoked paprika, garlic powder, salt, and black pepper. Toss until evenly coated.
02 - Heat 1 tablespoon oil in a large skillet over medium heat. Add onion, bell pepper, and jalapeño. Sauté 3–4 minutes until softened. Add seasoned chicken and stir to combine. Cook 2 more minutes, then transfer to a bowl and wipe out skillet.
03 - Lay tortillas flat. On half of each tortilla, layer one-quarter of the cheese, followed by one-quarter of the chicken mixture, then another layer of cheese. Fold tortillas in half to form half-moons.
04 - Heat remaining oil in skillet over medium heat. Cook 1–2 quesadillas at a time for 2–3 minutes per side, pressing gently with spatula, until tortillas are golden and crispy and cheese is melted.
05 - Transfer to cutting board, rest 1 minute, then cut into wedges. Serve hot with sour cream, salsa, cilantro, and lime wedges if desired.