Boil salted water. Cook noodles until al dente.
Drain. Rinse under cold water to cool.
Toss with 1 tablespoon sesame oil. Set aside.
Whisk peanut butter, soy sauce, rice vinegar, sesame oil, honey, lime juice, garlic, ginger, and red pepper flakes.
Add warm water 1 tablespoon at a time until sauce is pourable.
Taste. Adjust seasoning as needed.
Combine noodles, bell pepper, cabbage, carrot, edamame, green onions, and cilantro in large bowl.
Pour sauce over noodle mixture.
Toss until evenly coated.
Cover. Refrigerate at least 30 minutes to chill.
Toss again before serving. Add water if sauce thickened.
Divide into bowls. Garnish with sesame seeds, peanuts, cilantro, and lime.
Serve cold or at room temperature.