Directions

1. In a large skillet, cook sausage over medium-high heat until no longer pink, 8-10 minutes, breaking into crumbles; drain. Transfer to a 5- or 6-qt. slow cooker.
2. Add onion and carrots to same skillet; cook and stir until softened, 2-4 minutes. Stir in mushrooms and garlic; cook and stir until mushrooms are softened, 2-4 minutes. Transfer to slow cooker. Stir in broth, tomatoes, tomato sauce and Italian seasoning. Cook, covered, on low 4-6 hours or until vegetables are tender.
3. Add noodles; cook 1 hour longer or until tender. Stir in spinach. Remove insert; let stand 10 minutes. Divide mozzarella cheese among serving bowls; ladle soup over cheese. If desired, sprinkle with Parmesan cheese and basil.