Bring a large pot of salted water to a boil and cook the pasta until just al dente. I make sure not to overcook it, because firm pasta holds up better in salads. Drain and rinse briefly under cool water to stop the cooking.
While the pasta cooks, I chop the cucumber, tomatoes, bell pepper, and red onion. I try to keep the pieces similar in size so every forkful tastes balanced. The colors alone already make the salad inviting.
In a small bowl, I whisk together olive oil, red wine vinegar, dried oregano, black pepper, and a small pinch of salt. I taste it here and adjust before adding it to the salad.
I add the cooled pasta to a large bowl, followed by all the chopped vegetables and olives. Tossing gently at this stage helps distribute everything evenly.
I fold in the feta chunks carefully so they stay mostly intact. Then I pour the dressing over the salad and toss gently until everything is coated.
I let the salad chill in the fridge for at least 30 minutes. Just before serving, I sprinkle fresh parsley and give it one last gentle toss.