Prepare the marinade: In a bowl, combine 2 tablespoons of soy sauce, 1 tablespoon of sesame oil, and 1 tablespoon of minced ginger. Whisk until well blended.
Marinate the fish: Place the 4 sea bass fillets in the marinade, ensuring they are evenly coated. Let them marinate for at least 15 minutes to absorb the flavors.
Heat the oil: In a large skillet or wok, heat 2 tablespoons of vegetable oil over medium-high heat until shimmering.
Add the green onions: Sauté the sliced green onions for about 1 minute until they start to soften and become fragrant.
Cook the sea bass: Carefully add the marinated sea bass fillets to the skillet. Cook for about 4-5 minutes on each side or until the fish flakes easily with a fork and is golden brown on the edges.
Season to taste: Sprinkle with salt and pepper to taste during the cooking process, adjusting based on your preference.
Serve immediately: Once cooked, remove the fillets from the skillet, and garnish with any remaining sliced green onions. Serve hot with a side of steamed rice or stir-fried vegetables for a complete meal.