To prepare a yummy pumpkin cheesecake bars recipe, you will first need to prepare the pumpkin pie filling. Preheat the oven to 350 degrees F (180 degrees C) and grease two 9-inch round pans with cooking spray. Cut the pie crust in half lengthwise, then cut each half into 4 slices. Place the slices on the prepared baking sheets. Bake for 20 to 25 minutes, or until the crust is golden brown. Remove from oven and allow to cool before cutting into squares.