I've used store bought in the pastLol.. Pillsbury crust . I make crusts for pies from scratch , but not for this pot pie. Was lazy. My recipe for crust usually is half Crisco and half butter and it's crumbled in the food processor adding ice water if needed.
Mine is Butter and Lard
with ice water after cutting it in

Was just about crumbs at that point

Forgot to put them in old age setting in LOL
Richie