The variety of seeds and the kale make this a distinctive twist on coleslaw.
In a small bowl, whisk olive oil, mustard, and apple-cider vinegar. Season with salt and pepper.
In another bowl, combine kale, cabbage, carrot, parsley, and red onion with sunflower, pumpkin, and hemp seeds.
Season with salt and pepper, drizzle with dressing, and toss to coat.