Start by washing the produce. Rinse the iceberg lettuce until it's clean. Don’t skimp on this. A good wash makes all the difference! For the tomatoes, just slice them into nice, even rounds. For the onion, keep those slices thin; nobody likes a chunky bite of red onion!

Grab those crusty Italian rolls. Slice them open. A little trick? Try to toast them slightly. Just a minute under the broiler will do. Toasting helps them hold up against the moisture from the fillings.

Now comes the fun part. Begin layering your sub. Start with a generous bed of lettuce. Then add the tomatoes, followed by that stunning red onion.

Remember, next you should lay down the Provolone cheese. Follow it with the meats, stacking them artfully. Create your own culinary masterpiece!

In a small bowl, whisk together olive oil, red wine vinegar, oregano, crushed red pepper, and a pinch of salt. Drizzle this beautiful mix over the meat and veggies. This step really brings everything to life.

Cap things off with the top of the roll. You can press it down gently to meld all those flavors.