First, combine the water, soy sauce, brown sugar, minced ginger, minced garlic, and Oolong tea leaves in a bowl. Whisk it together until the sugar dissolves. This marinade is a game-changer, as it’s the base that infuses flavor into the sea bass.
Place the Chilean sea bass fillets in a shallow dish and pour the prepared marinade over the top. Ensure each piece is well-coated. Cover with plastic wrap and place in the refrigerator. Allow it to marinate for at least 30 minutes, or for a more intense flavor, up to 2 hours.
While the fish is soaking in the marinade, heat vegetable oil in a large skillet over medium heat. Add the minced garlic for the spinach, sautéing until fragrant, about 30 seconds. Toss in the spinach and cook until just wilted, which should take about 2-3 minutes. Season with salt and pepper. Set aside.
Preheat your oven to 400°F (200°C). Remove the fish from the marinade, ensuring to let any excess liquid drip off. Place the fillets on a lined baking sheet and bake for approximately 15-20 minutes. The fish will become flaky and cooked through. Keep an eye on it; overcooked sea bass loses its luscious texture.
In the same skillet you used for the spinach, drain the canned corn and add it to the skillet. Sauté for about 2-3 minutes on medium heat until warm. This little touch adds sweetness and complements the fish perfectly.
Once the sea bass is cooked, prepare your plate. Place a bed of sautéed spinach at the base, lay the sea bass elegantly on top, and spoon the warm corn around it. Drizzle with reserved marinade (if desired) for an added punch.
All that’s left is to dig in! Whether you’re sharing this dish with family or savoring it solo while binge-watching your favorite show, it’s bound to leave you satisfied.