Step 1

Mix the soy sauce, mirin, and miso paste, and keep stirring until the miso paste has dissolved. Set aside.

Step 2

In a large skillet or wok over medium high heat, add sesame oil, and swirl the pan to coat it evenly.

Step 3

Place the bok choy halves, cut side face down, and cook for 2 minutes without moving them around.

Step 4

Flip the bok choy and cook for an additional minute and add the sauce.

Step 5

Stir quickly to coat the bok choy, turn the heat off and transfer to a plate.

Step 6

Season with salt and pepper and serve.