I do make my own crusts and find I can control what sort of ingredients are in there (or not in there).  I couldn’t believe how easy it was too!  I have one crust that I used for a bacon and egg pie that would be perfect for pot pies.  It’s really quick too if you use a food processor (cuisinart).  Takes only 3 minutes or so to measure and mix.  Rolling is another few minutes.  Good luck!