Coat a Dutch oven with cooking spray; place over medium-high heat until hot. Add chopped onion blend; sauté 5 minutes. Add broth and next 5 ingredients. Bring to a boil; cover, reduce heat, and simmer 30 minutes.
Add pasta to vegetable mixture; simmer 15 minutes or until pasta is tender.
Spoon evenly into 7 bowls; sprinkle each serving with 1 tablespoon cheese, and serve immediately.