Tuna Mayonnaise Are you sure you want to delete this recipe? This recipe was uploaded by oliviascotland My daughter's favourite tuna mayo - good for sandwiches, dips, or on baked potatoes. Quick and easy to make. Method Finely slice the spring onions into a bowl. Add the drained tuna and the black pepper. Add the mayonnaise (and yoghurt if using), and mix well. Serve as desired.