Vegan pumpkin pie made with tofu sucks. Don't use tofu. Do this instead.
2 cups canned pumpkin
1 cup soymilk (don't use any reduced fat crap)
3/4 cup brown sugar
1/4 cup cornstarch
1 tablespoon molasses
1 teaspoon cinnamon
1 teaspoon vanilla
1/2 teaspoon each: ginger, nutmeg and salt
1/4 teaspoon allspice OR cloves
Puree in blender or food processor until smooth. Pour into prepared pie crust and bake for an hour at 350. The center of the pie shouldn't be too gooey when it's done. For best results, let set overnight and then re-heat in the oven before serving.
Credit where credit is due: I snagged this originally from here.