Pour the pumpkin mixture into the unbaked pie crust.
Bake for 15 minutes at 425 degrees F (220 degrees C).
Reduce the oven temperature to 350 degrees F (175 degrees C) and continue baking for 40-50 minutes, or until the center is just set with a slight jiggle.
Let the pie cool completely on a wire rack.
Serve chilled or at room temperature, topped with whipped cream if desired.
Notes
For a homemade crust, use your favorite flaky pie dough recipe.