Cook the Pasta: Bring a large pot of salted water to a rolling boil. Add the rotini pasta and cook according to the package instructions until it reaches al dente texture. Drain the pasta in a colander and rinse it under cold running water to halt the cooking process.
Prepare the Tzatziki Dressing: In a medium mixing bowl, combine the plain Greek yogurt, finely diced cucumber, olive oil, fresh lemon juice, minced garlic, and chopped dill. Mix everything thoroughly until well blended. Season with salt and pepper to your liking.
Combine Ingredients: In a large serving bowl, add the cooled pasta to the tzatziki dressing. Gently fold in the cherry tomatoes, finely chopped red onion, and sliced kalamata olives. Toss all the ingredients together until evenly coated.
Chill the Salad: Cover the bowl with plastic wrap or a lid, and place it in the refrigerator. Allow the salad to chill for at least 30 minutes.
Serve: Just before serving, give the pasta salad a gentle stir. If desired, sprinkle crumbled feta cheese on top.
Notes
Chill the salad for at least 30 minutes to enhance the flavors.
Keyword Greek cuisine, pasta salad, tzatziki, vegetarian