Check out some of Berlin's best "every day" sushi and rice bowls at Ishin - an exceptional Japanese restaurant chain available at several locations in Mitte and West Berlin. Punching way above their price level, prepare to be captivated by this machine of a restaurant. They are one of the few restaurants in Berlin with enough volume to procure whole tunas, which means that the likelyhood of you scoring unusual cuts is pretty high. Ishin is a very busy lunch destination and the shops on Mittelstrasse and Bundesallee are the biggest ones with the best offering. Ordering well is essential and the pro move is to avoid the menus and to order small a la carte items instead.
Come for early or late lunch to avoid lines and order the Tuna Toro Sashimi, the Salmon Ikura Rice Bowl, the Uni Maki plus all your favourite nigiris