Cut the halved napa cabbage in half again (so they're quartered).
Cut the cabbage into strips about 4-5 mm wide.
Place the cabbages in a bowl. Put the green parts first and put the white parts on top.
Sprinkle with salt and toss to combine. Let it sit for 5 minutes and mix with hands.
Lightly rinse with water.
Squeeze out the water from the cabbage and place in a bowl. Add the tuna and the ☆ marked ingredients.
Story Behind this Recipe
I wanted to eat lots of napa cabbage in a refreshing way.
I divide the directions into many steps but I did it to make it easy to understand. In Step 3, I place the white parts of the cabbage on top to make sure they get enough salt but you don't need to be precise Adjust the amount of mentsuyu (Japanese noodle dipping sauce) according the strength of its flavor and saltiness.