01 - Bring a large pot of salted water to a rolling boil. Add the short pasta and cook according to package directions until al dente. Drain thoroughly, then 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 vigorously until smooth and well blended.
03 - Add the cooled pasta to the bowl with the tzatziki dressing. Toss thoroughly, ensuring every piece is evenly coated with the dressing.
04 - Gently fold in the halved cherry tomatoes, crumbled feta cheese, diced red onion, and sliced Kalamata olives. Toss lightly 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. The salad tastes best served well chilled.
06 - Transfer to a serving bowl and garnish with additional fresh dill, mint leaves, or a light drizzle of extra virgin olive oil if desired.