Tortellini soup

Prep time: 10 minutes
Cook time: 15 minutes
Yield: 4 to 6 servings



* 1 Tbs olive oil

* 2 celery stalks, chopped (no leaves)

* 1/2 cup grated carrot

* 7 cups low-sodium chicken broth

* 12-oz package frozen tortellini (about 1 1/2 cups)

* 2 cups shredded cooked chicken

* Salt and pepper to taste

* Grated parmesan cheese, optional