Adding chicken to udon noodles is a fairly common practice in Japan. However, the soup is usually a dashi broth made using kelp and dried, smoked and fermented skipjack tuna.
Step 1
Bring chicken stock, ginger, chili powder, and garlic to a boil in a pot over medium-high heat. Add chicken, bok choy, and mushrooms; reduce heat and simmer lightly for 3 minutes. Add noodles and cook for 4 minutes.
Step 2
Pour soup mixture evenly into 2 soup bowls. Place mung beans in the center of each bowl, with green onion placed neatly on top. Sprinkle with dried onions and cilantro.