1. Having chips with pizza...
2. ....and with your curry.
3. Putting pasta and/or potatoes in pies...
4. ...putting pies inside a buttered roll...
5. ...and soaking Scotch pies in baked beans.
6. Eating tinned pies.
It's a quick, tasty, and easy meal when you're in a hurry, even if the pale, uncooked pastry does look a bit like a dead person's bumcheek before it goes in the oven.