Italian Hero Sandwich

Step 1

Rinse the red onion under cold water, then transfer to a large bowl. Add the red wine vinegar, dried oregano and 1 teaspoon salt. Stir to combine and set aside.

Step 2

Arrange the rolls cut side up so they lie flat. Spread with a thin layer of mustard and/or mayonnaise, if using. Shingle the entire surface with the cheese, then the cured meats. Scatter an even layer of pickled peppers.

Step 3

Add the iceberg lettuce and olive oil to the onion-oregano mixture and toss until well coated. Season to taste with salt. Pile the lettuce on one side of the sandwich, then close the sandwich and press down lightly. If packing, wrap the sandwich tightly in parchment paper or foil, then cut in half crosswise. Sandwiches will keep for up to 4 hours refrigerated.