Heat the olive oil in a large pot over medium heat. Add the chopped onion and cook until translucent, about 5 minutes.
Add the minced garlic, ground cumin, ground coriander, and smoked paprika. Cook for another 2 minutes, stirring frequently.
Add the diced sweet potato, chickpeas, vegetable broth, and diced tomatoes. Bring to a boil, then reduce heat and simmer for 20 minutes, or until the sweet potatoes are tender.
Season with salt and black pepper to taste. Stir in the chopped kale and cook for another 5 minutes, until the kale is wilted.
Serve hot and enjoy!
Notes:
This stew is even better the next day, as the flavors have more time to meld together.