I did DLM (and BJV) last year so it is as
Yesitsme has described. If you want to see some recent-ish photos of what the ET meals look like:
http://www.flyertalk.com/forum/25888044-post1654.html
And the rest of the thread has equivalent photos for CE, though in both cases we can assume that the precise contents will change (it probably won't be turkey to Turkey!). They do have a Vegetarian box, which may help the picky eater, but there's great food in Turkey so maybe she can just wait until she gets there!