Prepare Graham Cracker Crust according to recipe instructions. Use either the bake or the no-bake method based on your personal preference.
Lemon Cream Pie Filling
Zest and juice two of the lemons. You should have about 2 tablespoons of fresh lemon zest and 1/4 cup of fresh lemon juice. Slice the 3rd lemon and cut into quarters for decorating the top of the pie.
Beat the cream cheese, confectioner's sugar, vanilla extract, lemon zest, lemon juice, and whipping cream together until creamy. Spread into the graham cracker crust. Place into the refrigerator until ready to serve, at least one hour.