We have a saying in our family that if you aren't eating "breakfast food" for breakfast it's called "the breakfast of champions." Well this quesadilla falls in that category. You could also have this as a light lunch or even a snack.
I spray my tortilla with buttered flavored cooking spray and start the assembly. Just layer on some good quality sharp cheddar and your favorite variety of apple sliced thinly. Top with a little extra cheese to hold the top tortilla on and grill.