1tbspcapers, finely chopped – can be replaced with gherkins
1tspDijon mustard
Salt and pepper
Instructions
Mix the ingredients for the tuna salad together and season to taste with salt and pepper.
Toast the sandwich rolls – in a frying pan, in a toaster or in a sandwich press.
Spread the bottom halves of the rolls with mayonnaise and top with a handful of crisp salad leaves.
Add a generous layer of tuna salad, plus more vegetables if you like – cucumber, tomato, avocado or similar – and finish with the top half of the roll.