Gather all your ingredients and tools on a clean cutting board.

Slice your tomato into 1/4-inch thick rounds and pat them dry with a paper towel.

In a small bowl, whisk together 3 tablespoons olive oil, 1 tablespoon red wine vinegar, 1/2 teaspoon oregano, and a pinch of salt and pepper.

Using a serrated knife, slice each sub roll horizontally, creating a top and bottom half.

Drizzle about 1 teaspoon of the oil and vinegar mixture onto the bottom half of each roll.

Start with 2 ounces of ham on each roll bottom, then layer 2 ounces of salami on top.

Place 2 ounces of provolone cheese on top of the salami on each sandwich.

Add a handful of shredded lettuce, then the dried tomato slices, red onion slices, and roasted red peppers if using.

Place the top half of each roll on your sandwich and press down gently.

Drizzle any remaining oil and vinegar mixture over the top half before serving.

Cut diagonally if desired and serve immediately.