Add butter to a large saute pan or pot add all your prepped veggies to butter and saute for about 8 minutes, or until they look partially cooked.
add in flour and mix well to make a roux in the veggies, turn down heat and continue cooking for about 5 minutes.
Add in 3 cups of your turkey or chicken stock to make the gravy for the pot pie. If it looks too thick add in another cup of stock.
Season with salt and pepper and allow to cook on low hear for about 15 minutes. At this point let the mixture cool down a bit.
Fill each casserole almost to the top with your prepared turkey filling Place premade pie dough on top of filling , and crimp around edges, finished crust anyway you like.
Brush dough with beaten egg, and make 4 slits in the top of the dough
Place pot pies in preheated oven for about 20 minutes or until the crust gets a rich golden brown color.
Serve as is or with lightly buttered noodles, or any side you may like. You may also make one big pot pie if you like, just keep your dough in one piece while chilling.