In a small bowl, whisk together soy sauce, honey, rice vinegar, and coconut milk; set aside.
Heat coconut oil in a large skillet or wok over medium-high heat.
Add red onion and sauté for 3–4 minutes until softened and slightly charred.
Stir in garlic, ginger, and chili; cook for 1 minute until fragrant.
Add the torn kale in batches, tossing constantly, and cook for 2–3 minutes until it starts to wilt.
Pour the prepared sauce over the kale and stir well to coat everything evenly.
Gently fold in the pineapple chunks and cook for 3–4 minutes until heated through and slightly caramelized.
Season with salt and pepper to taste.
Remove from heat and garnish with toasted coconut or peanuts if desired.
Serve immediately over steamed rice or quinoa.