2 great places in the surrounding area (both from a Charles Kuralt book).
For the best scampi you will ever taste and exceptional intuitive but not intrusive service by tuxedo clad waiters, try La Riveria in Metairie.
And across the Lake Pontchartrain Causeway, east of Mandeville on highway 190, is a small French restaurant called La Provence. It is a real roadfood location, if not a typical roadfood menu.
I haven’t been to either in more than a year, but they both have long standing excellence.