Bring a large pot of salted water to a boil. Cook the pasta according to package instructions until al dente. Drain and rinse the pasta under cold water to stop the cooking process. Allow it to cool completely.
While the pasta is cooking, prepare the vegetables. Halve the cherry tomatoes, dice the cucumbers, finely chop the red onion, slice the black olives, and crumble the feta cheese. Chop the fresh parsley.
In a large mixing bowl, combine the cooled pasta, cherry tomatoes, cucumbers, red onion, black olives, feta cheese, and fresh parsley.
Pour the prepared dressing over the pasta and vegetables. Gently toss everything together until well coated with the dressing.
Cover the bowl with plastic wrap and refrigerate the pasta salad for at least 1 hour, allowing the flavors to meld and the salad to chill.
Before serving, give the pasta salad a final toss. Garnish with additional parsley or feta if desired. Serve chilled and enjoy this classic Italian pasta salad with family and friends.