Savory ham pot pie is best the day it is baked. Storing and reheating will cause the crust to become a bit soggy. You can microwave leftovers just know that the pie crust will soften. To Freeze: To freeze the unbaked pie filling, follow steps 1-4 in the directions below. Then spoon the filling into an 8x8 foil pan. Cover with a layer of plastic wrap and then a layer of foil. Label with the contents and date. The pie filling can be frozen for up to 3 months. To Cook From Frozen: Allow the frozen pie filling to thaw in the refrigerator for 24 hours. Remove the foil and plastic wrap. Finish assembling the pie starting with step 5 in the directions below.