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