EVERY NATION HAS A PASTY

  1. Pasty, Cornish
  2. Empanada
  3. Pocket, Hot
  4. Knish
  5. Samosa
  6. Patty
  7. Calzone
  8. Bridie, Forfar
  9. En Croute
  10. Turnover
  11. Bierock
  12. Piroshki
  13. Runza
  14. Pork buns
    Although I guess I don't know if pork buns are Americanized or not.
    Suggested by   @teo
  15. Bao (thanks Erik Elkins)