Grilled Tuna with Piccalilli is a delicious and healthy dish that combines the flavors of grilled tuna steak with tangy and spicy piccalilli sauce. The tuna is marinated in a mixture of olive oil, lemon juice, garlic, and herbs, then grilled to perfection. The piccalilli sauce, made with pickled vegetables, mustard, and spices, adds a zesty and flavorful kick to the dish. Serve the grilled tuna with a generous spoonful of piccalilli sauce on top for a refreshing and satisfying meal.