Get all your ingredients together, get out a medium size bowl, take the lid off the pie crust and set aside.
Measure out the milk and heavy whipping cream into the bowl, give it a quick stir. Slowly stir in the package of pudding and mix completely, about 2 minutes.
After the pudding mix is completely stirred in with the milk/cream, pour the pudding into the pie crust. Place the pie crust lid back on and refrigerate the pie for at least 10 minutes. You could easily freeze it too if you'd like.
Remove the pie from the fridge and enjoy! If your pie is frozen, give it a few minutes to thaw out. Optional, but you could place freshly sliced bananas on top.