01 - In a medium bowl, combine BBQ sauce, hot honey, smoked paprika, and garlic powder. Add the shredded chicken and toss until well coated.
02 - Lay out the tortillas. On half of each tortilla, sprinkle a layer of mozzarella and cheddar cheese. Top with equal amounts of BBQ chicken, diced red onion, and cilantro (if using). Sprinkle remaining cheese on top. Fold tortillas in half to close.
03 - Heat 1/2 tablespoon butter in a large nonstick skillet over medium heat. Place a quesadilla in the pan and cook 2–3 minutes per side, pressing gently, until the tortilla is golden brown and cheese is melted. Repeat with remaining quesadillas, adding more butter as needed.
04 - Let quesadillas rest 1 minute before slicing into wedges.
05 - Serve warm with sour cream, lime wedges, and extra hot sauce if desired.