1. Bring a large pot of salted water to a rolling boil. Add the pasta and cook according to package directions until al dente. This usually takes about 10-12 minutes. The pasta should be tender but still have a slight bite.

2. Once the pasta is cooked, drain it thoroughly in a colander. Rinse it under cold water to stop the cooking process and cool it down completely. This is crucial for a cold pasta salad. Let it drain well.

3. While the pasta cools, in a large bowl, whisk together the Greek yogurt, olive oil, lemon juice, Dijon mustard, dried dill, garlic powder, black pepper, and salt until smooth and well combined. The dressing should be creamy and pourable, with no lumps.

4. Halve the cherry tomatoes, dice the cucumber, finely dice the red onion, and dice the bell pepper. Aim for roughly uniform sizes for an even distribution of flavor and texture.

5. Add the cooled, drained pasta to the bowl with the Greek yogurt dressing. Add the chopped cherry tomatoes, cucumber, red onion, and bell pepper.

6. Gently toss all the ingredients until the pasta and vegetables are evenly coated with the creamy dressing. Ensure no dry spots remain.

7. For the best flavor, cover the bowl and refrigerate the pasta salad for at least 30 minutes to allow the flavors to meld. This also ensures it’s perfectly chilled for serving.

8. Before serving, give it another quick stir. If desired, garnish with fresh chopped parsley.