Remove sausage from casings. If using bulk sausage, this step is skipped.
Spray a large nonstick sauté pan with cooking spray and heat.
Add Italian sausage and onion to pan, crumble with Mix-N-Chop tool.
Cook until sausage browns, continue to crumble. Drain sausage and return to pan.
Stir in sweet potatoes, beans, garlic, and chicken stock; bring to a simmer.
Cover and cook 7-9 minutes, until sweet potato is tender.
Stir in chopped kale and rosemary, and cook for 4-6 minutes until kale wilts, stirring occasionally.
Serve soup in 4–6 bowls, garnish with grated parmesan cheese, using a MicroPlane.