How to prepare Italian 'vitello' tonnato (meat in tuna sauce)

Vitello tonnato is a typical summer dish, I used pork loin, instead of veal, for taste and cost effectivness). In the video I mention capers packed in OIL, but the recipe calls for capers packed in SALT: sorry for the mistake.
Ingredients:
Pork loin, cooked and thinly sliced
1 5oz-can Italian tuna in Olive oil and drained
1 tbsp Sicilian capers, packed in salt and rinsed
1 tbsp Italian anchovy paste
Mayonnese