Preheat the oven to 400 degrees F. Place the pie crust in a pie plate, crimping the edges.
Place the tofu in a food processor and blend until creamy and smooth. Add the pumpkin, sugar, spiced rum, and pumpkin pie spice and blend until smooth.
Pour the pumpkin pie filling into the pie crust and place in the oven. Bake for about one hour, until a toothpick inserted in the center of the pie comes out clean. Remove from the oven and allow to cool for at least 10 minutes before serving. Top with whipped cream, if desired. Enjoy!