I reheat turkey pot pie slices in the microwave for 3 minutes or until heated through because it's the fastest method. The crust will be soft rather than flaky, but it will still taste amazing. The best way to reheat turkey pot pie is in the oven at 350°F. Cover the pie with aluminum foil and reheat for 20 minutes or until it reaches 165°F. Remove the foil during the last 5 minutes to crisp the crust.