Massage the kale for about 1 minute with the dressing to soften it and mellow its bitterness. For a vegan version, swap the egg omelet for a tofu omelet: blend ~150g firm tofu, 1/2 onion, a pinch of baking soda, 1 Tbsp chickpea flour, and 1/2 Tbsp psyllium husks (or ground flax), cook covered on medium-low, flip once, then slice over the greens.