You can add anything to this-I buy pre-sliced hard salami at Aldi grocery store in packages. You can add any type of cheese, vegetables, etc. It's very versatile and so easy to make. It makes a lot too!
Combine all ingredients (except parmesan cheese) in a large container with a sealable lid or a large ziplock bag. Let set at least 2 hours for vegetables/cheeses/meats to marinade, turning or shaking container or bag halfway through.
Serve on a platter with toothpicks on the side as an appetizer. Sprinkle with parmesan cheese right before serving.