Lightly spray a 9x9-inch pan with non stick cooking spray and line with parchment paper.
Place the chopping blade in the food processor and add graham crackers. Run on high until they are finely ground.
Add the melted butter to the graham crackers and run on low until the mixture is evenly combined.
Transfer graham cracker mixture to the prepared pan. Spread into an even layer and press into pan to form a crust. Place in freezer while preparing the filling.
Clean the bowl of the food processor and install the dough blade. Add all filling ingredients. Run on high until the mixture is combined.
Pour filling over prepared crust and spread in an even layer. Chill for at least 2 hours, then cut and serve.