If you like canned tuna, please give this a try! The flavor of the tuna makes this a very tasty miso soup.
I love tuna and often have it simmered with Chinese cabbage, but I wondered if it would be good as miso soup, too.
You can use dashi stock instead of water + dashi granules of course. Since plenty of flavor comes from the tuna, you can probably use less miso than usual.
Enjoy Japanese food around the world.