Steps
1. Season the fish fillet with salt and pepper.
2. Place the fish fillet on a heatproof plate and top it with ginger slices.
3. In a small bowl, mix together the soy sauce, rice vinegar, and sesame oil.
4. Pour the sauce mixture over the fish fillet.
5. Prepare a steamer and steam the fish fillet for about 8-10 minutes, or until cooked through.
6. Garnish with chopped cilantro and sliced green onion.
7. Serve hot with steamed rice or vegetables.