Instructions

  1. Make dressing:
  2. Puree dressing ingredients in a blender until smooth, about 2 minutes, then transfer to a large bowl.
  3. Make salad:
  4. Cook pasta in a 6- to 8-quart pot of boiling salted water until tender. Drain in a colander, then rinse well under cold water.
  5. Add pasta, scallions, bell peppers, and sesame seeds to dressing, tossing to combine, and serve immediately.