Heat about a tablespoon of olive oil in a big saucepan and saute onion, ginger and tomatoes.
Add miso paste cook for about a minute then add rice washing or plain water.
Add tamarind broth powder mix and season with fish sauce (patis).
Add green chilies, cover pan and bring broth to a boil.
Add salmon head.
Cover and simmer for about 10-15 minutes.
Add vegetables and simmer for another 2-3 minutes.
Transfer to serving bowl and serve hot with rice. Enjoy!!