Spray a pie plate (or two!) lightly with cooking spray.
Place a tortilla in the bottom of the pie plate.
Note: If you are making a full-size quesadilla, you will top the entire tortilla with the following ingredients. If you are making a half-size quesadilla, you will top only 1/2 of the tortilla with the folliowing ingredients:
Top generously with cheese, chicken, black beans, corn, jalapenos, onions, and roasted red peppers. Add additional cheese on top.
Place another tortilla on top OR fold the bottom tortilla in half.
Bake in a 350 degree oven for 10-15 minutes or until cheese is melted and quesadilla is heated through.
Remove, slice and serve.