Tuna with Fennel and Tomato Relish

Thick tuna steaks are marinated in garlic and lemon oil, then broiled until seared on the outside while remaining tender inside, topped with a vibrant fennel and tomato relish enriched with tapenade for a fresh, Mediterranean-inspired dish.

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Prep Time 15

Cook Time 10

Marinating Time 1

Servings: 4

Course: Main Course

Cuisine: British

Calories: 470

Ingredients Method Notes

Ingredients

For the Seared Tuna:

¼ cup olive oil
Juice of ½ lemon
3 garlic cloves crushed
4 tuna steaks 6 oz/175 g each, about 1 inch (2.5 cm) thick
Salt and black pepper to taste
Lime wedges for garnish
Fennel tops for garnish

For the Fennel and Tomato Relish:

1 small fennel bulb chopped
2 ripe but firm tomatoes finely chopped
2 tbsp olive oil
1 tbsp lemon juice
1 tbsp tapenade
1 garlic clove chopped

Method

In a large nonmetallic dish, whisk together the olive oil, lemon juice, and garlic. Place the tuna steaks into the mixture, turning them over to ensure they’re well coated. Cover and refrigerate for approximately 1 hour, flipping the steaks occasionally during the marinating time.
While the tuna marinates, prepare the relish: combine the fennel, tomatoes, olive oil, lemon juice, tapenade, and garlic in a bowl, stirring thoroughly until everything is evenly mixed.
Lift the tuna steaks from the marinade, setting the marinade aside for basting. Position the tuna under a preheated hot broiler, about 3 in (7 cm) from the heat source. Broil for 3–4 minutes per side, brushing with the reserved marinade once or twice during cooking.
Once cooked, sprinkle the tuna with salt and pepper, then spoon the fennel and tomato relish generously over the top. Add a finishing touch with lime wedges and delicate fennel tops, and serve alongside a crisp green salad.

Notes

What's the Healthiest Thing to Eat with Tuna?

Fresh vegetables and leafy greens are the healthiest accompaniments for tuna. A simple green salad with olive oil and lemon dressing provides nutrients, fiber, and healthy fats without adding excessive calories. Roasted or steamed vegetables like broccoli, asparagus, and bell peppers complement tuna's protein while delivering vitamins and minerals.

Whole grains offer nutritious carbohydrate options that pair beautifully with tuna. Brown rice, quinoa, and whole wheat pasta provide sustained energy and fiber. Fresh herbs like dill, cilantro, and parsley add flavor without sodium, while light citrus-based dressings enhance tuna's natural taste without unhealthy fats.