Sasaya
Sasaya is smack in the middle of a trendy, residential neighborhood of Prenzlauer Berg filled with great restaurants. Serving up some lovely Japanese food, they have been a local favorite for decades. The menu features a variety of dishes such as sushi, tempura and rice bowls, expertely and delicately presented. The atmosphere is great with low Japanese tables, busy but quiet, a prime spot for a date night. The pro move here is to order from the daily specials menu for ultimate freshness and creativity. The lines are long and rarely pick up the phone for reservations, but persevere. It's worth it.
One of the best places in Berlin for Monday lunch - you need to be there at 12:00 the latest or be one of the lucky few who gets them on the phone.