Prepare the pie crust by parbaking it. Preheat oven to 400 degrees. While heating, let frozen, pre-made pie crust sit out to thaw a bit (about 20 minutes).

(This part is optional.) When crust is thawed, move it to a glass pie dish and mold it to the sides.

Prick bottom with fork, place on cookie sheet, and bake for 12 minutes. You aren't trying to bake it until it is golden, only until it is partially cooked.

While the crust is being prepared, mix the rest of ingredients in a food processor until smooth.

When pie crust is done, take out. Reduce the oven temperature to 325 degrees.

Fill the pie crust and bake for 45 to 50 minutes, until the center is set but still slightly wobbly.

Let cook for 10 minutes, then put in refrigerator to set for 4 to 5 hours.

Top with lemon zest and whip cream before serving.