I have also noticed the odd month when there has been no Mezze on the menu. But, it is generally replaced by some other spread like Antipasti or such.
On another note, some 12 years ago I flew JFK-DXB and the menu had an item called Pasta Bar. There was a selection of stuffed Ravioli(lamb) or rigatoni and a choice of 3 different sauces. I have almost never come across this in the menus ever since. Anybody seen this recently?