Garlic-marinated halibut with tomato relish

Ingredients:

• 4 halibut fillets (225 gr.)
• 250 ml red pear-shaped tomatoes, halved
• 250 ml yellow pear-shaped tomatoes, halved
• 1/2 cup pitted Kalamata olives
• 1/2 small red onion, diced
• 1/4 cup chopped parsley
• 1 avocado, pitted and sliced
• 2 tablespoons chopped fresh tarragon leaves, plus 2 tablespoons for garnish
• 1/2 cup olive oil
• Salt and ground black pepper
• 5 cloves of garlic, crushed to a paste
• 1/4 cup olive oil

Preparation:

1. In a small bowl, combine the tomatoes, avocado, olives, onion, parsley, tarragon, and olive oil. Season with salt and pepper to taste. Let sit at room temperature for 30 minutes before serving.
2. In a small bowl, combine the garlic and olive oil. Brush the fish on both sides with the oil and let it marinate for 15 minutes.
3. Preheat grill to high heat.
   
   Season the halibut with salt and pepper to taste on both sides and grill until tender and cooked through, about 5 minutes per side. Transfer to a platter. Sprinkle with tarragon and serve immediately with tomato relish.