Creating the perfect Grilled Halibut is straightforward when you follow these steps:

1. Combine Marinade Ingredients: In a small bowl, mix together olive oil, lemon juice, minced garlic, dried oregano, salt, and black pepper.
2. Marinate the Halibut: Place the halibut fillets in a shallow dish. Pour the marinade over the fish, ensuring an even coat. Cover and refrigerate for at least 30 minutes.
3. Preheat the Grill: Heat your grill to medium-high temperature. Ensure the grates are clean and lightly greased to prevent sticking.
4. Remove Halibut from Marinade: Take the marinated halibut out of the refrigerator and let it sit at room temperature for about 5-10 minutes.
5. Grill the Fillets: Place the halibut fillets on the preheated grill. Cook for 4-5 minutes on each side, depending on thickness. Fish is done when it flakes easily with a fork.
6. Check for Doneness: The internal temperature should reach 145°F (63°C) when fully cooked.
7. Remove and Rest: Once done, remove the fillets from the grill and allow them to rest for a few minutes.
8. Garnish and Serve: Place the grilled halibut on a serving platter, garnish with fresh herbs, and lemon slices. Enjoy your meal!