There's no trick to this speedy, kid-pleasing meal that plays well on the busiest fall nights.
Preheat oven to 425 degrees, with racks in upper and lower thirds. Lightly brush two rimmed baking sheets with oil, and place in oven to warm up. In a small bowl, combine honey and mustard; set aside.
Place 4 tortillas on a work surface. Dividing evenly, sprinkle with half the cheese, top with turkey, honey-mustard, and apples; finish with remaining half of cheese. Cover with remaining 4 tortillas, and brush tops with oil.
Carefully remove hot baking sheets from oven; place two quesadillas on each. Bake until golden, about 20 minutes, flattening with a spatula, and rotating sheets halfway through. Let cool 5 minutes before serving.
Serve the quesadillas with our Halloween Salad, for a balanced meal.