This is the “baby” of Spike Mendelsohn, who shot to fame as a Top Chef contestant and remains renowned thanks to the scrumptiousness of his burgers, fries, and shakes. (Mendelsohn also currently hosts the reality TV show Midnight Feast.) The Prez Obama Burger (with applewood bacon, onion marmalade, Roquefort cheese, and horseradish mayo sauce) remains the most popular item on the menu, according to the staff; but the toasted marshmallow milkshake will always be the 1 milkshake, to my mind. Spike’s other restaurants include the pizza place next door, although We The Pizza (; tel 202/544-4008), good as its pies are, never gets the crowds that Good Stuff does. A second Good Stuff Eatery is located in Georgetown at 3291 M St. NW; this location, unlike Capitol Hill’s, is open daily, including Sundays. Warning: Good Stuff Eatery is always jumping, with people in line on the first floor and filling upstairs and outdoor patio tables. The line moves fast and table turnover is fairly quick, but just the same, you might consider getting the burgers to go, as so many do.