I used potatoe, cabbage, carrot, onion, steak and magic to make mine. The pastry (shortcrust) was store bought, i just chopped up the veg nice and small and put it in the rolled pastry with a little seasoning and flour (for the gravy). A little eggwash on the top and then popped it in the oven for 20mins at a high temp, then reduced the temp and left for 40 mins.
With the leftover pastry I made a mini pasty filled with dark chocolate (70%), it only had 30mins (20 of those on high). It needed a little sugar on top really... I don't like it too sweet though, maybe next time.