Since I don't know when or where I'll day I will say it will be:
Whatever I ate last.
I am not on death row, I do not plan my last meal, simple as that.
And while I am living, I am traveling, exploring, tasting new and different cuisine along the way, so what may be the 'best' changes often and I'd not share it as a wish for a 'last' meal. Someone may hear me and make it happen early