In a pot, cook onion, mushrooms, and bok choy until golden; set aside.
In the same pot, sauté celery, bay leaves, garlic, and ginger for 3 minutes.
Stir in turmeric and black pepper for 30 seconds to enhance aroma.
Pour in vegetable broth and simmer for 20 minutes to deepen flavor.
Mix in lime juice, cilantro, and salt; adjust seasoning.
Combine noodles, vegetables, and pour broth over top. Serve hot with chili flakes.
