To make the curry peanuts, in a small skillet, add the oil, peanuts, curry powder, red pepper flakes (if using), and salt. Turn the heat to medium-low and let the oil heat up slowly to bloom the spices. Once it starts to smell fragrant (about 2 minutes), remove from heat and transfer to a large bowl (make sure to scrape out every last bit!). You don’t want to burn the spices or they will turn bitter.
In the same large bowl, add the kale, cabbage, carrot, scallions, oil, vinegar, soy, maple, and sesame. Toss to combine. Taste and add more salt or vinegar, if needed.
Serve this as is for a light lunch or topped with your protein of choice (fried egg, baked tofu, chicken, etc..).