Add the chickpeas, vegetables (reserving to kale), seasonings, broth, and lemon juice to a slow cooker. Cook on low for 5-6 hours.
About 10 minutes before the cook time is up, remove the lid from the slow cooker. Use an immersion blender to carefully (avoid burning yourself) puree the soup for about 3-4 seconds. You can also transfer about 1 cup of soup and allow it to cool before blending. Add it back to the soup. This makes a creamier base.
Add the kale and coconut milk to the soup and stir well. Cook for about 10 more minutes, or until the kale is soft.