Catering mostly to the late-night club crowd in Adams-Morgan, this diner serves comfort food—Grilled Cheese, Meatloaf, hamburgers and Deep-Fried Onion Rings are among the most popular items. These favorites are served with modern flair, Meatloaf comes with creamy garlic mashed potatoes and traditional Grilled Cheese is made with sourdough bread and provolone. The diner is also a perfect place to enjoy a leisurely weekend brunch, complete with buttermilk pancakes, bagels with smoked salmon, shrimp cocktail and mimosas. Upbeat music sets the mood. In addition to its satisfying fare, Duplex Diner features a full-service bar.