8 ounces linguine, uncooked
3 1/2 cups water
1 medium bok choy or 3 baby bok choy (about 1/2 pound), sliced (about 3 cups)
1 red bell pepper, thinly sliced
2 medium carrots, cut into coins (about 1 cup)
1 small yellow onion, halved and thinly sliced
3 medium cloves garlic, minced (about 1 tablespoon)
1 thumb-sized piece of ginger, peeled and minced (about 1 tablespoon)
1/4 cup Tamari-style soy sauce*
3 tablespoons sesame oil
2 tablespoon brown sugar
1/8 teaspoon crushed red pepper flakes (add more if you like more heat)
1/2 teaspoon kosher salt
1/2 medium Napa cabbage, thinly sliced (about 4 cups, loosely packed)
1 tablespoon rice vinegar
Toppings: fresh cilantro, chopped salted peanuts, sliced scallions, and/or toasted sesame seeds