1Begin by arranging the slices of mortadella, ham, and salami on a large serving platter.
Add the slices of provolone cheese to the platter, spacing them evenly among the meats.
Place the slices of tomato on the platter, arranging them in a visually appealing manner.
In small bowls, serve the pesto and herbed mayo as dipping sauces.
Toast the sourdough bread slices until they are golden brown and slightly crispy.
Cut the toasted sourdough bread into halves or quarters and add them to the platter.
Serve the Italian Meat and Cheese Platter immediately, allowing guests to create their own combinations.