To make the dressing, combine all ingredients in a blender or food processor and blend until smooth, about 1 minute.
Cut the cabbage into thin strips: lay the half cabbage head on a cutting board and cut in half lengthwise, leaving the root end in tact. Then cut the remaining halves in half again lengthwise. Now cut all three sections crosswise into half inch strips until you reach the root end.
To prep the ramen noodles, crush lightly while still in packaging. Open package and discard seasoning packet. In a dry skillet over medium heat toast noodles until lightly browned, about 4-6 minutes.
Toss cabbage, cilantro, bean sprouts, green onions, chiles, ramen noodles, and sesame seeds with peanut dressing and serve. Try tofu, chopped nuts, shredded chicken, or grilled salmon if you're looking for some protein.