If you are looking for vegan cuisine in Budapest, Édeni Vegán is on the Buda side close to the Batthyány tér Metro station on Iskola Utca. Soups, salads, hot foods, vegan sausages and burgers, smoothies, special drinks like lavender lemonade, elderflower water, tea, espresso and other bottled drinks, including flat and sparkling water in glass bottles. I had cold strawberry soup with Gyumolcs lemonade (fruit lemonade that is bright red), and then ordered black tea, which came in a HUGE pot with a BIG mug, lemon and demerara sugar in a tiny serving cup.