To make barramundi with lemon butter sauce, sauté the minced garlic in butter till it becomes golden in color.

Add the lemon juice, basil leaves, and salt to the garlic. Stir it and remove it from heat.

Coat the fish fillets with olive oil and pan-fry them for about 3 minutes on medium heat. The edges of the fish should turn golden brown in color.

Place the cooked fish on a serving plate and spoon the sauce on them. You can also add a couple of green peas alongside the fish and serve!