Add olive oil to a large pot. On medium-high, add garlic, ginger and chili (optional). Stir for 1 minute or until fragrant.
Next, add carrot, miso paste and stir to coat. Add vegetable broth and bring to a boil.
Once the broth is boiling, add dumplings. Simmer for 2 minutes, then add Buk choy and vermicelli noodles. Simmer for an additional 2-3 minutes or until dumplings and noodles are cooked. Taste and add soy sauce as desired.
Serve into bowls and garnish with spring onions, sesame seeds and chili oil (optional).