meat pre-cooked in a pot then placed in a pie dish and baked OR, placed raw with a little water in the pie dish and steamed for several hours? i think the steamed version is the traditional one.
I’ve only ever had the baked version.
perhaps you will fancy steamed pie as well. really nice.
Sans kidneys, with mushrooms. 
But I like the crust to be browned.
Um, in the trash?
ETA: I ought to add that I just spent six months living with the Brits in Afghanistan and just never acquired a taste for their steak and kidney pies there. It probably has something to do with the fact that I was eating them at a military dining facility.
Beat me to it…
Made by Fray Bentos, obv.
or maybe because there was a prince sitting beside you? their bird’s eye brand is passable.