This is really nice Middle Eastern dish not from one particular country. It looks very nice presented. The taste develops more over time so make the dish up to a day in advance for best flavour. If you can not find a tool made especially for coring vegetables an apple corer will work just as well. I used a knife but just be careful the direction you cut if you do so. If there is leftover meat mixture you can use it to make Hashwa which is equally as good all on its own or just eat it up as I like to do! Modified from a recipe on http://www.yasalamcooking.com.