Sandwich chains are all the rage, and they're only going to get bigger. Earlier this Summer, Flip video camera founder Jonathan Kaplan announced a new mobile-driven grilled cheese concept The Melt , with plans to spawn 500 national locations by 2015. If that weren't enough, 100 Montaditos , which is being described as a "Spanish Starbucks for sandwiches," will roll out 4,000 US locations  in the next five years.
While there's no denying that the sandwich is essential to American cuisine, it remains to be seen if it can shrug off its brown-bag lunch image and venture into serious dinner territory. Are you excited about the new era of sandwiches — and do you see them being appropriate to eat for every occasion?
Source: Flickr User diekatrin