01 - Combine chicken pieces, olive oil, chipotle peppers, adobo sauce, cumin, smoked paprika, salt, and black pepper in a mixing bowl. Toss thoroughly to evenly coat.
02 - Heat a large skillet over medium-high heat. Add the marinated chicken and sauté for 5 to 7 minutes, stirring occasionally, until fully cooked and lightly charred. Transfer chicken to a plate.
03 - Wipe out the skillet and decrease heat to medium.
04 - Lay one tortilla flat. Evenly scatter half of the shredded cheese over half of the tortilla. Top with a quarter portion of cooked chicken, diced mango, sliced red onion, and cilantro. Finish with remaining cheese, then fold the tortilla to cover the filling. Repeat for all tortillas.
05 - Melt butter or olive oil in the skillet. Cook each folded quesadilla for 2 to 3 minutes per side, gently pressing, until golden brown and cheese has melted.
06 - Transfer cooked quesadillas to a cutting board and let rest for 1 minute. Slice into wedges.
07 - Arrange quesadilla wedges on plates and serve immediately with sour cream, salsa, and lime wedges as desired.