In small bowl, mix granulated sugar and 1/4 teaspoon cinnamon; set aside. In another small bowl, mix cream cheese, brown sugar and 1/4 teaspoon cinnamon with spoon.
Spread cream cheese mixture over tortillas. Place apple slices on cream cheese mixture on 1 tortilla. Top with remaining tortilla, cheese side down. Spray both sides of quesadilla with cooking spray; sprinkle with cinnamon-sugar mixture.
Heat 10-inch nonstick skillet over medium heat. Cook quesadilla in skillet 2 to 3 minutes or until bottom is brown and crisp; turn quesadilla. Cook 2 to 3 minutes longer or until bottom is brown and crisp.
Remove from skillet to cutting board; let stand 2 to 3 minutes. Cut into 8 wedges.