Jacques Imos on Oak st. ( pronounced "jackemos" ).. the duck and anodouille gumbo.
And I'm partial to Parkway Bakery for poboys (roast beef or overstuffed shrimp with a bag of Zapps Cajun Crawtaters and glass bottle of Barqs root beer ), but can't argue Bahn Mi Boys
@antipop suggested.
If you happen to make it to Cooter Browns, they do serve food...get the 9th ward Special. ( hot sausage patties on bun ) that's my favorite there.
And we found Bratz Yall in Bywater ....German bratwurst and beers.