If you aren't a big fan of vinegar, you can always make your own Greek pasta salad and use the amount of red wine vinegar you prefer. At Costco, the salad costs $4.99 a pound — homemade in bulk will almost certainly cost less per pound. If you want to make this pasta salad more Greek in character, instead of penne pasta, you can use orzo. Orzo works well in any pasta salad, but its texture is particularly suited to Greek ingredients and dressing. If you have the time to make your own Greek salad, give orzo a try!