The popular Boulder, Colo., sandwich chain makes its first foray into the Chicago market, opening in River West. Find salads and the usual array of sandwich options, including Italian, roast beef & provolone and turkey & swiss -- ranging from $5-$10. There are also a few "specialty" sandwiches like prime rib & provolone and eggplant parmesan, for a couple bucks more.

Average cost: <$10