Cook noodles according to package instructions, then drain and rinse with warm water.
In a bowl, whisk together peanut butter, soy sauce, honey, rice vinegar or lime juice, sesame oil, garlic, ginger, and crushed red pepper flakes.
Slowly add warm water to the peanut sauce until smooth and pourable.
Combine noodles, shredded chicken, carrots, bell peppers, cabbage, and green onions in a large bowl or skillet.
Pour the peanut sauce over the noodle mixture and toss until everything is evenly coated.
Warm gently over low heat if serving hot, or serve chilled as a noodle salad.
Garnish with chopped peanuts, sesame seeds, and fresh cilantro before serving.