Badabing DC: 19th and North Lynn streets, Arlington (Rosslyn).
Big Cheese Truck: Union Station (North Capitol St. and Massachusetts Ave., NW).
Cap Mac DC: Farragut Square (17th and K sts., NW) with mac-and-cheese, chicken-Parmesan meatballs, beef Bolognese, potato-leek-and-bacon soup, risotto rice pudding with pears, and balsamic-marinated chickpeas.
Curbside Cupcakes: Pinky One: First stop: 20th and E streets, Northwest; Second stop: 18th Street and Pennsylvania Avenue, Northwest; Third stop: Metro Center (12th and G sts., NW); Fourth stop: Farragut Square (17th and K sts., NW). Pinky Two: First stop: Van Ness Metro (Van Ness St. and Connecticut Ave., NW); Second stop: 24th and M streets, Northwest; Third stop: Dupont Circle (N St. and Connecticut Ave., NW); Fourth stop: 18th and E streets, Northwest.
DC Empanadas: 19th and L streets, Northwest, with traditional beef, vegetable, and "Amazing Aroi" (pork and Thai basil) empanadas.
DC Pie Truck: Federal Center (Third and D sts., SW).
DC Slices: Farragut Square (17th and K sts., NW) from 11:30 to 3:30 with tater tots and chili as well as pizza.
Eat Wonky: Franklin Park (13th and K sts. NW). Night service on U Street (check the Twitter feed alter for an exact location).
El Floridiano: Farragut Square (17th and K sts., NW) with roasted-kabocha-squash soup.
Fojol Bros.: Franklin Park (13th and K sts., NW) with three vegetarian curries, including chickpea and eggplant.
Sâuçá: Pangea will be on K Street between 13th and 14th streets, Northwest. Saucalito will be at Union Station (North Capitol St. and One Massachusetts Ave, NW).
Sweet Bites Truck: Farragut Square (17th St. between K and I sts., NW) with fresh coffee, hot chocolate, and pumpkin-spice cupcakes.
Taco Carrito: 900 North Stuart Street (between N. Ninth St. and Wilson Blvd), Arlington, from 11:30 to 1:30.
TaKorean: L'Enfant (Maryland Ave. between Sixth and Seventh sts., SW).
Tasty Kabob: Cart one: 1525 Wilson Boulevard (next to Safeway and Lynne St.), Arlington, from 11 to 3. Cart two: 1735 North Lynne Street (between 19th St. and Wilson Blvd.), Arlington, from 11 to 3.
Yellow Vendor: 12th and F streets, Northwest, at 11:30.
Follow the Best Bites Bloggers on Twitter at twitter.com/bestbitesblog