In a medium bowl, combine crushed pecans, granulated sugar, and melted butter. Press mixture evenly into the bottom of a 9×13 inch baking pan.
In a large bowl, beat cream cheese, powdered sugar, and vanilla extract until smooth. Gently fold in the thawed whipped topping. Spread this mixture evenly over the pecan crust.
In a separate bowl, whisk together the instant vanilla pudding mix, milk, and beat until thickened, about 2 minutes. Pour this pudding layer over the cream cheese layer.
Spoon the cherry pie filling evenly over the pudding layer.
Cover the pan and refrigerate for at least 4 hours, or until firm.
Slice and serve.
Notes
For a cleaner slice, run a knife under hot water and dry it before cutting.
This dessert can be made a day in advance.
Ensure all ingredients are cold when preparing the pudding layer for best results.