Prep all the ingredients: thinly slice all the vegetables and cut the chicken into small pieces.
Cook the chicken: Heat a large skillet or wok over medium-high heat. Add 1 tablespoon of oil, then sauté the chicken. Season the chicken with salt and pepper and cook until browned and cooked through, about 5–7 minutes. Remove and set aside.
Sauté aromatics: In the same pan, add a touch more oil if needed. Sauté the onion for 2–3 minutes until soft. Add garlic and cook for another 30 seconds until fragrant.
Add vegetables: Stir in the vegetables (carrots and cabbage). Cook for 3–4 minutes until the vegetables are tender but still crisp. Remove and set aside.
Add the bone broth: In the same pan, add 4 cups of chicken stock, 3 tablespoons of soy sauce, 3 tablespoons of vegetarian oyster sauce, and ½ teaspoon of freshly cracked black pepper. Stir to combine and bring to a simmer.
Add noodles: Add the vermicelli rice noodles (bihon) and gently toss until the noodles are fully coated and absorb the sauce, about 3 minutes.
Combine all the ingredients: When the noodles have absorbed most of the broth, add back the vegetables and chicken. Toss it all together until fully mixed.
Serve and Enjoy! Taste and adjust seasoning as needed. Serve hot with lime wedges on the side for a bright finish.