Mine was eggplant on crusty ciabatta, with fresh mozzarella and carrot-olive salad. A half sandwich is $3 and change; it was enough to hit the spot:
I know this sandwich would have no appeal to some people, including the people I'm married to at the moment, because they don't like eggplant, olives, ciabatta loaves, and so on. But that leaves more for the rest of us. Really — they make one extremely long sandwich and slice off a section when you order it. It's a clever blend of flavors and textures, with the tang of vinegar, the saltiness of olives, the rich oiliness of the eggplant, plus crunchy carrots, melded all together with creamy cheese..... mmm. My kind of fast food.
So make sure you go alone or with a bunch of people who hate olives. More for you.