M&S Tuna Steak in Olive Oil 4 x 200gCanned in olive oil, these flaky tuna steaks can be added to pasta salad and drizzled with salad cream for a tasty meal. 800g net weight, 600g drained weight. Four per pack. Our M&S seafood products have been sourced from fisheries and fish farms in a way that minimizes their ethical and environment impact, while guaranteeing you the highest quality, delicious seafood youd expect from M&S. Ingredients Skipjack Tuna (Fish), Olive Oil, Salt Allergy