I'm going to be temping right near the Farringdon tube stop for a couple of weeks. I'm looking for cheap places to eat lunch (under £6, nothing too heavy). I'm planning on checking out the tandoori sandwiches at Delhi Grill (about a mile away - my maximum distance for walking on my lunch hour), but other than that I don't know what other options there are. I've searched the boards, but nothing's cropping up. Anyone know any good places for soup, salad, sandwiches etc?