In a bowl, whisk together the peanut butter, sesame oil, vinegar, chile, sugar, Dijon, coriander and soy until smooth. Whisk in the canola oil and check for seasoning. In a large bowl, toss dressing with the pasta, cucumbers, bell pepper and scallions. Check for seasoning.
PLATING: Serve in large serving bowl. Garnish with peanuts.
BEVERAGE: Sparkling water with fresh lime and lemon.