Cook the whole wheat pasta according to package instructions. Drain and rinse under cold water to cool. Set aside.

In a large mixing bowl, combine the diced cucumber, cherry tomatoes, red onion, parsley, and feta cheese.

In a small bowl, whisk together the olive oil, red wine vinegar, garlic powder, salt, and black pepper.

Add the cooled pasta to the vegetable mixture and pour the dressing over the top. Toss gently to combine all ingredients evenly.

Chill the salad in the refrigerator for at least 30 minutes before serving to allow the flavors to meld.