There's old school, and then there's Mosca's. This Italian joint looks like it's about to collapse into the mud, but it soldiers on, serving to-die-for oysters Mosca (cooked in cheese and bread crumbs) and garlicky spaghetti bordelaise that's heaven-sent. Dimly lit and romantic in a dilapidated way, Mosca's is an experience, although they'll have to roll you home after dinner.
The restaurant is truly in the middle of nowhere, and they've stubbornly remained there because this is just how certain New Orleans restaurants do things (and yes, this is effectively a New Orleans restaurant, even if it's located about 15 miles west of town).