Opening this fall at Wintergreen Plaza on Rockville Pike: The Halal Guys, a brick-and-mortar version of the New York City food cart business with the crazy-long lines. What’s on the menu? Beef and chicken gyros served with pita or basmati rice, plus sides of hummus, baba ganouj, falafel and fries. “Our secret is our white sauce — not the typical tzatziki with cucumber — which puts everything together really well,” says Maryland franchisee Rabi Ullah. He’s also opening a location in College Park, with plans for further expansion statewide (click here for the menu). The Halal Guys replaces Rocklands Barbecue and Grilling Company, which has exited Wintergreen Plaza now that Mission BBQ is open.