Boil water in a large pot and add a pinch of salt.
Add the orzo pasta to the boiling water.
Cook the orzo according to package instructions until al dente.
Drain the orzo and rinse under cold water to stop the cooking process.
In a large mixing bowl, combine the cooled orzo with cherry tomatoes, cucumber, and red onion.
In a small bowl, whisk together olive oil, lemon juice, salt, and pepper.
Pour the dressing over the salad mixture and toss to combine.
Add crumbled feta cheese and parsley, mixing gently.
Taste and adjust seasoning if necessary.
Serve immediately or chill in the refrigerator for 30 minutes before serving.