This sandwich turns take-along food flaws—travel time, cramped packing quarters, moist ingredients—into assets. Pressing the sandwich lets the crusty bread soak up roasted vegetable juices, and travel time gives flavors a chance to meld.
Fresh basil and lemon juice brighten the flavors of a fresh vegetable medley. During recipe testing, we’ve found that the 18-oz. organic packages of prepared polenta have a deliciously creamy-grainy texture, so opt for organic if you can find it.