We’re very fascinated by what this Japanese Subway sandwich shop is doing with locally grown ingredients. They’ve started growing hydroponic lettuce right in the middle of the store — which tops their subway sandwiches. Talk about fresh ingredients. In order to make this truly sustainable, they’d have to start growing all of their veggies in-house, but for now, this is a great start. Not only is this hyper-local lettuce healthy, it’s a great visual centerpiece for the space.