Ingredients
Method
- Combine and Slow Cook
- In a 6- to 8-quart slow cooker, place the garlic, onion, carrots, celery, Parmesan rind, rosemary, chicken broth, olive oil, onion powder, garlic powder, red-pepper flakes, lemon juice, kosher salt, and several grinds of black pepper. Stir well and cook on low for about 6 hours, until the vegetables are tender and the flavors are fully developed.
- Add Sausage and Greens
- Increase the heat to high and remove the lid. Stir in the chopped greens. Pinch the sausage into 1-inch pieces and gently drop them into the hot broth. Cover and cook for an additional hour, or until the sausage is thoroughly cooked. If including pasta or couscous, add it 40 minutes after the sausage and continue cooking for 20 minutes more.
- Finish and Serve
- Discard the Parmesan rind and rosemary stem. Taste the soup and adjust the seasoning with additional salt, black pepper, red-pepper flakes, or lemon juice as desired. Ladle into bowls and top with grated Parmesan, if preferred.
Notes
Parmesan rinds, available in many grocery stores, enrich the broth with a subtle, nutty flavor. Keep rinds frozen for long-term storage; they can be added directly to hot soups without thawing.