01 - In a small bowl, whisk together the fresh lemon juice, extra-virgin olive oil, minced garlic, sea salt, black pepper, and dried oregano or thyme until well combined.
02 - Arrange the fish fillets in a shallow dish and pour the marinade over them, turning each fillet to ensure even coating. Let rest for at least 10 minutes and up to 30 minutes for deeper flavor penetration.
03 - Preheat the oven to 400°F (200°C) if baking, or set a large non-stick skillet over medium heat if pan-searing.
04 - For baking: place the marinated fillets on a parchment-lined baking tray and bake for 12–15 minutes until the fish turns opaque and flakes easily with a fork. For pan-searing: lay the fillets in the hot skillet and cook 3–4 minutes per side until golden and cooked through.
05 - Transfer the cooked fillets to serving plates, sprinkle generously with chopped fresh parsley, and accompany each portion with a lemon wedge.