This casual restaurant from long-time producer (300-plus years!) of katsuo-bushi (dried bonito flakes), Ninben, naturally serves dishes that make use of the umami-rich ingredient. Set meals, with dishes such as hearty miso soups and dashi takikokomi gohan (rice steamed in stock), are good value, and healthy to boot.
To sample just dashi (stock) made from katsuobushi (dried bonito), visit the Nihonbashi Dashi Bar on the ground floor of Coredo Muromachi 1.