there used to be a GREAT place up in the northern burbs called CRAWDADDY BAYOU which was OUTSTANDING! Its in a prime area for moderately priced restaurants too (Bob Chinn's Crabhouse is down the street, which at one point was the 4th largest grossing restaurant in the country).
no clue why it failed. Everything about it was perfect.
there are very few New Orleans themed places around. I would be having beignets, poorboys and muffalatas like crazy if there were. Heaven on Seven, downtown, is the most famous of any.