re: Chicken pot pie- best recipe?

I just make a brown gravy with a butter & flour roux browned to my liking then adding chicken broth. Throw in some cooked chicken and whatever veggies you like, season with spg, rosemary, sage, thyme and simmer until gravy thickens to consistency of a pot pie filling. Fill in a premade pie and bake until pie crust is browned. Brush some beaten egg or melted butter on top of pie crust if you want to feel fancy.