Probably one of the better kept secrets of the Financial District, the Clipper Cafe is basically Scotiabank's employee cafeteria. It supplies good meals cheap and no one cares of you actually work there. The meals aren't subsidized but aren't ready marked up either. Great sandwiches and salads, and decent hot meals most days. You can't go wrong for the price.
The only trick is finding it. Locate the main elevators and go to the fourth floor, then follow the horde.