Grilled Fish Fillet with Pesto Sauce is a delicious and healthy dish that combines the flavors of tender fish fillets with a vibrant and aromatic pesto sauce. The fish is grilled to perfection, resulting in a crispy exterior and a moist and flaky interior. The pesto sauce adds a burst of freshness and herbaceousness to the dish, complementing the natural flavors of the fish. This recipe is quick and easy to make, making it a perfect option for a weeknight dinner or a special occasion.