Tuna Steak in a little Brine. Your perfect source of protein, Princes Drained and Ready to Use Tuna Steak is just as tasty whether it’s on top of a jacket potato or in the kids’ lunchtime sandwich. Responsibly Sourced using dolphin friendly fishing methods.. Easy peel lid.. Princes, caring about taste, quality and families since 1900.. In a little brine,High in protein,Responsibly sourced,No artificial preservatives, colours or flavours