Spread each half of bread with the giardiniera. Arrange the capicola, mortadella, and provolone on the bottom bread half; top with remaining bread. To serve sandwich warm, preheat the oven to 350 degrees F. Bake the sandwich until warmed through, about 5 minutes. Serve the sandwich warm or at room temperature.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.