This is the closest you can get to fast food here. Vegetarian fast food, that is. They have street vendors who sell all kinds of sausages that you take away on buns. But the best is the fried cheese. It's a square patty of fried eidam (that's their common cheese) it's like a giant mozzarella stick on a bun. The bread products are so good here. And the mustard all has more horseradish than yellow mustard would have at home.
All in all, it's absolutely delicious.