Those won't be the china used on board I'm pretty sure.
I actually just received an email from A3 about choosing a meal for my upcoming flights. It links to
this page.
However for none of my booked flights I am actually able to choose a meal. But..if I go through the booking process for a new ticket (same flights) I am able to choose. So it seems that it does not work for existing bookings, but it
does work for new bookings. Many flights offer the same choices though. A few different options I found:
That very last dish is actually the one I posted two weeks ago in this thread. It doesn't quite look the same..