Flame me if you will, but the FAs probably do that flight (or other long hauls) all the time. The food gets boring for us, but can you imagine knowing what you will be eating 2-4x per week for each meal? As far as I'm concerned, they should have their pick of catering.
Seeing as we are all trapped in a metal tube though, I really wouldn't have given it too much thought. Its not like they have tables set aside for them for a relaxing evening. Tough job.