Cook the pasta according to the package instructions until al dente. Drain and rinse under cold water.
Prepare the vegetables by slicing the red onion, halving the tomatoes, and chopping the green bell pepper.
For the dressing, whisk together the olive oil, white balsamic vinegar, oregano, garlic powder, onion powder, crushed red pepper, and sugar in a small bowl.
In a large bowl, combine the cooled pasta, prepared vegetables, black olives, and parsley. Pour the dressing over the salad and toss to coat evenly.
Season the salad with salt and pepper to taste. Serve immediately or chill in the refrigerator before serving.