Place the mayonnaise and pesto in a bowl, mix well and spread one pita bread with half the mixture.
Add the arugula then the salami, place another pita on top and spread with mushroom bruschetta.
Add the ham slices and the roasted pepper strips.
Spread the last Greek pita bread with the remaining pesto mayonnaise, close the sandwich, insert the toothpicks and olives in the 4 "corners" and cut into quarters.