In a small bowl, whisk together the olive oil, red wine vinegar, Dijon mustard, oregano, garlic powder, salt, and black pepper until smooth and well combined.
Taste the dressing and adjust seasonings as desired.
In a large salad bowl, combine the iceberg lettuce, romaine lettuce, cucumbers, turkey salami, garbanzo beans, olives, tomatoes, and Parmesan cheese.
Toss the ingredients until evenly mixed.
Pour the dressing over the salad.
Toss again until every ingredient is coated. This Italian Chopped Salad should be evenly dressed but still crisp.
Taste and add extra Parmesan or seasoning if desired.
Serve immediately and enjoy.