Cook the Orzo: Bring a large pot of salted water to a boil. Add the orzo pasta and cook according to package instructions until al dente. Drain and rinse under cold water to stop the cooking process. Set aside to cool.
Prepare the Vegetables: In a large mixing bowl, combine the halved cherry tomatoes, diced cucumber, chopped red onion, and Kalamata olives. Stir well to mix.
Whisk the Dressing: In a small bowl, whisk together the olive oil, red wine vinegar (or lemon juice), lemon zest, chopped oregano, parsley, salt, and pepper until well combined.
Combine Ingredients: Add the cooled orzo to the bowl of vegetables. Pour the dressing over the salad and toss gently until all ingredients are well coated.
Add Feta: Carefully fold in the crumbled feta cheese, ensuring it doesn’t crumble too much.
Chill & Serve: Allow the salad to chill in the refrigerator for at least 30 minutes to let the flavors meld together. Toss once more before serving.