Add some Asian flavors to the table with this dish of healthy green vegetables.
In a small bowl, whisk together vinegar, soy sauce, and sesame oil. Set aside.
In a large skillet with a tight-fitting lid, bring 1 cup water and ginger to a boil. Add the bok choy; reduce to a simmer. Cover and cook until leaves are vibrant green and stems are fork-tender, 3 to 5 minutes. Drain well; discard ginger.
Transfer bok choy to a serving platter; drizzle with the vinegar-soy mixture, and serve immediately.