Heat coconut oil in a large pot over medium heat. Sauté the onion for 3-4 minutes, then add the green curry paste and cook until fragrant.
Stir in the coconut milk and vegetable broth, bringing to a gentle simmer.
Add the cubed sweet potato and cook for 10 minutes, until it begins to soften.
Stir in the chickpeas, bell pepper, soy sauce, and maple syrup (if using). Cook for another 10 minutes, until the vegetables are tender.
Serve the curry over cooked quinoa, garnished with fresh cilantro and lime wedges for brightness.