FlyerTalk Evangelist
Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: BA Silver, TK E+, AA PP, Hyatt Globalist, Marriott LT Plat, Hilton Diamond
Posts: 13,057
What specifically are you worried about? Short haul? Long haul?
You can pre-order your meal ex-Madrid on long hauls. A flight attendant will also come around to take your order shortly after take-off.
I can't recall noticing a precise order of service.