Preheat the oven to 350°F. Spray a 9x13 baking dish with nonstick cooking spray. Set it aside.
Add the graham cracker crumbs, chopped pecans, and granulated sugar to a medium-sized mixing bowl. Stir to combine.
Add the melted butter and stir to coat the graham cracker crumb mixture completely.
Press into the prepared baking dish. Bake for 8 minutes. Allow the crust to cool completely.
Using either a stand mixer or a medium-sized mixing bowl and a handheld mixer on medium-high speed, beat the cream cheese for 1 to 1½ minutes until smooth.
Add 1 of the 8-ounce containers of thawed whipped topping, powdered sugar, and vanilla for 1½ to 2 minutes until smooth.
Spread the cream cheese mixture evenly over the cooled crust.
Evenly spread both cans of cherry pie filling over the cream cheese layer.
Evenly spread the remaining container of thawed whipped topping over the cherry pie filling layer. Sprinkle the 3 tablespoons of finely chopped pecans over the whipped topping layer. Cover and chill in the refrigerator for 4 hours. Just before serving, slice into 3 slices x 5 slices.
Notes
You can crush your own graham crackers using a food processor or in a Ziploc bag with a rolling pin.
Oven temperatures vary and may need to be recalibrated periodically to ensure they are accurate. Make sure to keep a close eye on your crust as the suggested baking time approaches.
Be sure the cream cheese is softened to room temperature to ensure no lumps in the creamy cheesecake filling.
To make slicing easier after chilling, cut into slices while cold and then let thaw briefly before serving.