Start by bringing a large pot of salted water to a rolling boil. Add the pasta and cook according to package instructions until al dente, usually around 8-10 minutes. Drain and rinse with cold water to cool.

In a large mixing bowl, combine the cooled pasta, cherry tomatoes, cucumber, red onion, bell pepper, and black olives. Toss gently to mix.

In a small bowl, whisk together the Italian dressing, garlic powder, salt, and pepper until well blended. Add lemon juice if desired for extra zest.

Pour the dressing over the pasta mixture and toss gently to coat everything evenly.

Cover and chill in the refrigerator for at least 30 minutes to meld flavors before serving.