Yalla Yalla, the highly acclaimed Lebanese restaurant concept that serves a take on Beirut street food, is to ramp up its expansion plans next year, starting with the opening of its third site in London. The business, which is led by Agnieszka Ilska and her ex-Kenza chef partner Jad Youssef, is understood to have taken a unit in the upstairs section of King’s Cross station, with an opening set for the first quarter of 2012. It is thought that the group, which currently operates sites in Winsley Street and Green’s Court, is looking to open several new units in 2012 as it looks to expand across the capital.