Grilled Blackfin Tuna:
Prepare the Marinade: Combine olive oil, lemon zest, lemon juice, soy sauce, Dijon mustard, minced garlic, salt, and pepper in a small bowl.
Marinate the Tuna: Place tuna steaks in a shallow dish and pour the marinade over them. Let it marinate in the refrigerator for 20-30 minutes.
Preheat the Grill: Heat the grill to medium-high and oil the grates lightly.
Grill the Tuna: Place the tuna steaks on the grill and cook for 2-4 minutes per side, depending on thickness. Aim for a medium-rare center.
Serve: Garnish with fresh parsley and serve with grilled vegetables or a salad.
Seared Blackfin Tuna:
Season the Tuna: Pat the tuna dry with paper towels, then season with salt and pepper.
Heat the Pan: Heat sesame oil and olive oil in a skillet over medium-high heat.
Sear the Tuna: Place the tuna steaks in the pan and sear for 1-2 minutes per side, ensuring a rare center. Adjust cook time for a more well-done steak.
Serve: Drizzle with soy sauce and lemon juice, and garnish with black sesame seeds. Serve immediately.
Baked Blackfin Tuna:
Preheat the Oven: Set your oven to 375°F (190°C).
Prepare the Tuna: Place the tuna fillets on a baking sheet lined with parchment paper. Drizzle with olive oil and spread Dijon mustard on top.
Season: Sprinkle with lemon juice, thyme, paprika, salt, and pepper.
Bake the Tuna: Bake for 12-15 minutes, depending on thickness, until the tuna is cooked through but still tender.
Serve: Garnish with fresh lemon slices and serve with roasted vegetables or a quinoa salad.