Prepare the cheesecake filling by mixing cream cheese, powdered sugar, and vanilla extract until smooth.
Fold in the sliced strawberries gently into the cheesecake mixture.
Heat a skillet over medium heat and add 1 tablespoon of butter, allowing it to melt and coat the surface.
Spread a generous amount of the cheesecake-strawberry filling on one half of each tortilla, then fold the tortilla in half.
Place the folded quesadilla onto the hot skillet and cook for about 3-4 minutes on each side, or until golden brown and crispy.
Remove from the skillet and let cool for a minute before slicing into wedges.
Serve warm, optionally topped with whipped cream.