The pies may be assembled and refrigerated up to a day ahead of time. Wait to brush the top of the pastry with the egg wash before baking.
If using measuring cups to get the flour for the pastry ensure that you use the fluff, scoop and level method. Fluff up the flour in your container. Spoon the flour into your measuring cup gently. Spoon in enough that it ends up being higher than the measuring cup. Then use the back of a knife to level out the flour, scooping the excess back into your flour container.
If you have a leftover pot pie or two that are already baked, it can be stored in the fridge, wrapped once cooled. Re-heat in a 325F oven till warmed through.
See the blog post for how to turn this into one large family-sized Pot Pie.