Marinated Tuna Steak

Ingredients

 * 500g of fresh tuna in 4 steaks
 * 1 lime, juice only
 * 2 tbsp extra virgin olive oil
 * 1 tbspoon of tarragon, minced
 * 1 teaspoon of balsamic vinegar
 * 1 teaspoon of oregano
 * 2 tbsp lowfat plain yogurt

Directions

 * 1) Prepare a marinade with the olive oil, the balsamic vinegar, the juice of the lime, the oregano and the minced tarragon.
 * 2) Marinate the tuna steaks for an hour in the refrigerator.
 * 3) Preheat the grill. Grill the tuna steaks on high for 2 to 3 minutes on each side. Lower the heat and cook until desired, about 10 minutes.
 * 4) Serve the tuna steaks immediately with the marinade mixed with the yogurt and some salad or steamed vegetables.

Nutritional info
Calories 300, Protein 39g, Fat 6 g, Sat Fat 1.5g, Cholesterol 23 mg, Fiber 1g, Sodium 470 mg