After you cool your turnovers completely, they can be frozen. Do not put icing or other freeze-dried strawberries on them. Wrap them in aluminum foil and then place them in a heavy-duty freezer bag. They will last in the freezer for 1-2 months. Thaw your turnovers, covered, at room temperature and then toast in the oven at 350ºF for about 5-8 minutes to get the pastry nice and flaky. Let them cool a bit, then add icing.