Mix everything together, except the tortillas, in a medium bowl and set aside.
Over medium heat, heat a non-stick frying pan or cast iron pan that's slightly larger than your tortillas.
While the pan is heating up, spread the chicken mixture over four of the tortillas. Place the remaining four tortillas on top of the filling.
Cut into four pieces and serve hot. If these cool too quickly, you can reheat them in the microwave at half power for 10-15 seconds or until warm.
Should be enjoyed immediately. Reheated quesadillas aren't the best.