Sgombri Delicius Grigliati O/Oliv is grilled mackerel fillets in olive oil. The product-specific reason to stock it is that grilling adds a roasted note while olive oil keeps the fish ready for antipasti, salads and plated dishes. Delicius has specialised in preserved seafood since 1974, but the fish species, cut and preserving medium are more useful to buyers than generic heritage.