See article:
http://news.bbc.co.uk/2/hi/uk_news/magazine/4221838.stm
Looks like the British goverment is sending Army ration packs to the flood vistims of Katrina.
This would include meals such as:
Chicken pate
Orange drink powder
Curried lamb
Fruit dumplings in custard
Bacon and beans
A little differnet from crawfish but could make a difference.