Heat a large saucepan over medium heat. Remove casings from sausage. Add sausage to pan, and cook about 5 minutes or until browned, stirring to crumble. Drain; return to pan.
Add broth, tomatoes, and pasta to pan, and bring to a boil over high heat. Cover, reduce heat, and simmer 10 minutes or until pasta is done. Remove from heat; stir in spinach until wilted. Sprinkle each serving with cheese and basil.