This is a winner every time I make it! Bring it out and guests go crazy over it

1. Preheat your oven to 350°F (175°C).
2. Carefully slice the Hawaiian buns in half horizontally, keeping the top and bottom halves intact.
3. Lay the bottom half of the buns in a 9x13-inch baking dish.
4. Spread the mayonnaise evenly over the bottom half of the buns.
5. Layer the salami, mortadella, ham, and provolone cheese over the buns in the baking dish.
6. Sprinkle the shredded lettuce, chopped roasted red peppers and sliced olives evenly over the layered meats and cheese.
7. Drizzle the Italian dressing over the top, ensuring even coverage.
8. Place the top half of the buns back on, sandwiching the meats, cheese, and toppings.
9. Lightly brush the tops of the buns with a little more Italian dressing and sprinkle with dried oregano.
10. Cover the dish with aluminum foil and place it in the preheated oven.