I picked up take-out a couple of times from a Lebanese restaurant in Melbourne called Middle Eastern Aromas. It's located in a somewhat dilapidated looking strip-mall and is half restaurant, half Middle Eastern market. I've picked up cans of stuffed grape leaves from the market on each of my visits!
I tried their falafel pita sandwich, filled with falafel, lettuce, tomato, parsley, pickled cucumber, and tahini. The falafel had plenty of flavor and the pickles were interesting. In other Lebanese restaurants, pickled turnips seem to be more common on sandwiches.