It's a supermarket, not a shiny new sterile one, but a good traditional market with many local products that are hard to find at other places. They do sell seafood and have a good meat department. And it's one of the best places in the city to buy wine.
I love Dorignacs! Have to stop anytime I am in Metairie! (Usually do a double header and hit Foodies too, which is next door). Dornignacs has a great wine department and also a great deli! I dont know what they put in that chicken salad, but it is to die for!