Place the chopped kale in a large bowl. Add a pinch of salt and massage it with your hands for 2–3 minutes until it softens and darkens in color.
In a small bowl, whisk together lemon juice, orange juice, olive oil, Dijon mustard, minced garlic, salt, and pepper.
Add the chickpeas, orange segments, pomegranate seeds, and sliced red onion to the bowl with kale.
Pour the citrus dressing over the salad and toss everything together until evenly coated. Top with sunflower seeds for added crunch, if using.
Serve immediately or refrigerate for up to 1 day for a chilled version.