Cook the Pasta: Bring a large pot of salted water to a boil. Add your rotini or penne pasta, then cook according to package instructions until al dente, about 8-10 minutes. Drain and rinse under cold water, then set aside to cool completely.

Prepare the Vegetables: While the pasta cools, chop your fresh vegetables. Dice bell peppers, halved cherry tomatoes, and red onion into bite-sized pieces.

Mix the Dressing: In a medium bowl, whisk together the herby vinaigrette ingredients: olive oil, vinegar, oregano, and Italian seasoning until well-emulsified.

Combine Ingredients: In a large mixing bowl, combine the cooled pasta, chopped deli meats, cheese, and vegetables. Drizzle the vinaigrette over and toss gently to coat.

Add Lettuce: If using, chop lettuce and fold gently into the pasta mixture.

Chill Before Serving: Cover and refrigerate for at least 30 minutes to allow flavors to meld.