When it comes to luncheonettes, nobody pays much attention, and that's a darn shame. Some of the best lunch restaurants are downtown and in the Design District, and unless you happen to work nearby, you usually don't hear about them. Such is the case with the Charcuterie, the longest-running restaurant in the Design District. Today the decades-old eatery presents a limited menu with French-influenced deli entrées, such as the salmon mousse and vegetable terrine plate, or the Brie and tomato sandwich. But the real reason it wins kudos is for its hot lunches, posted daily on a blackboard. You just might find grilled salmon with shallot and vermouth sauce, or blackened snapper Louisiana style, or rainbow trout almondine. You get the point: The focus is on fish. Wash it all down with a glass of house white, or an O'Doul's if you're headed back to work. Of course you have to take your chances on the blackboard specials, because what's served depends on what's been caught fresh that morning. But you can bet on the Charcuterie as a hale and hearty standard of the Design District since the days before the renaissance, when the only things caught fresh in the morning were the working girls on their way home.