How to Make Ahead and Bake from Frozen: you can assemble the entire pot pie and freeze it before baking. Wrapped tightly, the unbaked pot pie will keep in the freezer for up to 3 months. To bake from frozen, preheat the oven to 400°F. Place the pot pie on a baking sheet, cover with foil, and bake on the middle rack of the oven for 30 minutes. Remove the cover and continue baking for 30-35 minutes, or until the top is golden brown and the inside is bubbly.