Preheat Dutch oven to medium heat. Add a splash of water or vegetable broth. Cook onion for 2-3 minutes, add potatoes, broccoli, vegetable broth and spices.
Bring to a simmer, cover and cook for 15 minutes until the broccoli and potatoes are fork tender.
When the vegetables are tender. transfer a couple of ladles of the soup to blender. Add chickpeas and plant based milk. Blend until smooth. Transfer mixture back to the soup and combine. Serve with green onions and parsley.