Cook the ramen according to package directions, omitting the seasoning packet. Pour into a colander, rinse with cold water, drain, and set aside.
Heat oil in a large pot over medium heat. Add scallions, carrots, ginger paste, bok choy, and mushrooms. Cook for 2-3 minutes to soften.
Add the garlic and continue cooking for an additional minute.
Stir in the broth, tamari, sriracha, salt, and pepper. Bring to a boil, then reduce heat to low. Allow to simmer for 3-4 minutes.
Stir in the cooked ramen noodles. Adjust seasoning to taste, top with cilantro, and serve hot.