In the bowl of your stand mixer, beat heavy cream until stiff peaks form. Stir in sugar and vanilla. Spoon whipped cream into a bowl and set aside. Using the same mixing bowl, add Nutella and cream cheese and beat until smooth. Add the whipped cream back and mix until completely combined. Pour mixture into pie crust and smooth into an even layer. Cover with foil and place in the freezer for 4 hours or until set. Garnish with desired toppings and serve.