Sustainably sourced fresh fish fillet pan-seared with a crisp skin, served with garlic herb butter, seasonal vegetables, and lemon.
Toss the mackerel fillets with the olive oil, lemon juice, and salt.
Grill the fillets skin-side down for 4 minutes, then flip and cook 2 minutes more.
Fill the rolls with the sliced onion, tomato, and rocket.
Top each roll with a grilled mackerel fillet.
Squeeze over extra lemon and serve immediately while hot.