Ingredients
Method
- Toss onion, carrots, garlic, beans, broth, water, rosemary, olive oil, salt, and pepper into the crockpot.
- Cook on low for 6 hours or high for 3 hours.
- Remove rosemary stems. Use an immersion blender to puree half the soup for creaminess, or transfer half to a blender and return.
- Stir in lemon zest and juice. Add kale or spinach in the last 10 minutes to wilt.
- Taste and adjust salt and pepper before serving.