Cook pasta according to package directions. Drain and refresh under cold running water; drain well.
In large bowl, whisk together peanut butter, sesame oil, soy sauce, maple syrup, vinegar, hot sauce (if using), salt and pepper. Add pasta, cabbage, carrots, cucumber, red pepper, half the green onions and half the cilantro; toss with dressing to combine.
Transfer to serving bowl or platter, and garnish with remaining green onions, remaining cilantro and sesame seeds.
Tips
Substitute apple cider vinegar with lime juice or rice vinegar if preferred.Add a protein like chickpeas, chopped firm tofu or cooked chopped chicken if desired.For meal-prepped lunches in to-go jars, divide dressing evenly among six 2-cup (500 mL) mason jars. Layer in pasta, cabbage, carrots, cucumber, red pepper, green onions, cilantro and sesame seeds. Seal jar with lid. Store in refrigerator for 1 to 2 days. Shake before eating.