Finely chop giardiniera, olives and roasted peppers. Mince the basil, garlic and shallot.
To a bowl, add chopped giardeniera, olives, roasted peppers, basil, garlic, shallot, pepper to taste, red wine vinegar and olive oil. Mix well and set aside. The longer this sits the more flavorful it becomes. You can do it the night before if you prefer.
Form 4 – 5 burgers into balls.
Heat up your griddle. Add the Prosciutto slices and let them crisp up. Remove and set aside.
Toast your burger buns and set aside.
Oil the griddle and place the burgers on. Using a piece of parchment paper and a large spatula or burger press, smash the burger down to almost an inch thick. Cook to desired temp. Top with provolone to melt.