Cook the rotini pasta according to package instructions until al dente. Drain and rinse under cold water.
In a large mixing bowl, combine the cooked pasta, bell peppers, cherry tomatoes, red onion, cucumber, olives, and parsley.
Drizzle with vegan Italian dressing and toss until everything is evenly coated.
Season with salt and pepper to taste.
Refrigerate for at least 30 minutes before serving for best flavor.