Panino in Italian is literally Italian Sandwich. In Italy it is very usual to go to a local grocery store, and ask the clerk at the meat section for a panino, which will have anything you want to add!
Build the sandwich with 1 lettuce leaf, the mortadella, the artichokes and a light drizzle of their oil, a pinch of salt and pepper, and the other lettuce leaf.
Top with the other slice of ciabatta, cut in half, and enjoy!