Brivais Vilnis Grilled Mackerel Fillet in Olive Oil 160g: Enjoy the delicious and healthy grilled mackerel fillet in olive oil with this canned product. Made from mackerel fillet, olive oil and salt, this product has a rich flavour and a tender texture. It is high in omega-3 fatty acids and protein. It comes in a metal tin that preserves its freshness and quality. You can eat it as it is or add it to salads, sandwiches or pasta dishes.