01 - Bring a large pot of salted water to a boil. Cook the short pasta according to package directions until al dente. Drain thoroughly and rinse under cold running water until completely cooled. Set aside.
02 - In a large mixing bowl, combine the Greek yogurt, grated and squeezed cucumber, minced garlic, olive oil, chopped dill, mint (if using), lemon juice, salt, and black pepper. Whisk until smooth and well blended.
03 - Add the cooled pasta to the bowl with the tzatziki dressing. Toss gently but thoroughly until every piece is evenly coated.
04 - Gently fold in the halved cherry tomatoes, crumbled feta cheese, diced red onion, and sliced Kalamata olives. Toss until all ingredients are evenly distributed throughout the salad.
05 - Cover and refrigerate for at least 30 minutes to allow the flavors to meld and develop.
06 - Serve chilled, garnished with additional fresh dill or mint and a light drizzle of olive oil if desired.