I'm veggie but never count on the meal to be something edible...so usually pack a sandwich for long haul or eat at the airport for domestic.
My standard airport meal is a black bean burger at Chili's.
Probably the best meals are the pasta meals......but they are few and far between.
I've had amy's meatloaf on a plane too, that was pretty yummy.
I'm looking forward to flying to india when I can get an indian veggie meal.