We had such a lovely dinner at Ruben & Carla. The restaurant wasn't busy when we had our early dinner at 6pm. No reservation was made and we just walked in. We were given free veggie sticks and a dip which was nice and crispy. We ordered the Tagliata and Burger and we extremely impressed with how well marinated the meat was. Small handcut fries were a little on the greasy side but the amazing burger made up for it. The desserts were simply divine. We had Tiramisu and homemade lemon tart. Gorgeous! Would definitely go back to visit this place again when we're next in Berlin. Very friendly staff as well!