Cook the pasta according to package directions. Drain and rinse under cold water to stop the cooking process.
In a large bowl, combine the cooled pasta, cherry tomatoes, cucumber, olives, red onion, feta cheese, and parsley.
Pour in the Italian dressing and toss until everything is well coated.
Season with salt and pepper to taste.
Chill in the refrigerator for at least 30 minutes before serving for best flavor.