This small, modern diner is like a bright green oasis. Nothing could be fresher, especially since the vegetable store next door—also run by Stefanie Gröne and Carolin Munte—provides a constant supply of market-fresh produce. In addition to soup, Suppengrün offers luscious quiches, salads, and cakes, and also serves a sublime homemade lemonade. The locally grown ingredients correspond to the season. Even finicky eaters will be satisfied.