What ingredients does one need for a cold pasta salad recipe?

* Pasta: Any type of short or medium pasta can be used, such as penne, rotini, or macaroni.

* Vegetables: A variety of vegetables can be added to the salad, such as tomatoes, cucumbers, bell peppers, carrots, celery, and onions.

* Protein: Cooked chicken, turkey, ham, or tofu can be added to the salad for protein.

* Cheese: Grated parmesan cheese or crumbled feta cheese can be added for flavor.

* Dressing: A simple dressing made with olive oil, vinegar, salt, and pepper can be used to dress the salad.

* Herbs and spices: Fresh basil, oregano, or parsley can be added for flavor.