Grub is just off the phone with Frank Castronovo, who tells us the crew has struck a deal with the building at Francesca to serve in the beautiful 40-seat enclosed back garden. The space had been unused when the restaurant was Frankies 17, so this is great news for lovers of warm nights sipping wine and eating Spanish food. Speaking of, since the upcoming Titanic dinner at Prime Meats “sold out in 30 seconds,” as Castronovo tells us, know that next up in the dinner series is a garden party and Basque meal at Francesca. On April 23, toque Ryan Bartlow will fix five special courses, with wine pairings, for $95; call for reservations. Also on the horizon: The boys plan to sell food at upcoming festivals the Great GoogaMooga and the Frieze Art Fair, so lots of chances to try Jonathan Waxman’s favorite meatballs.