Sauté diced onions and minced garlic in a large pot over medium heat until onions are translucent, about five minutes.
Stir in cubed sweet potatoes and curry powder, sautéing for another couple of minutes.
Add coconut milk and water (or vegetable broth), then bring to a gentle simmer.
Once sweet potatoes are tender (around ten minutes), stir in chickpeas.
Just before serving, fold in fresh spinach until wilted, about one minute.
Transfer generous portions into bowls and serve hot over rice or quinoa, or with naan.