Creamy Chicken, Spinach and Mushroom Tortellini Soup

INGREDIENTS

1 1/2 tbsp

olive oil

1 1/3 cups

chopped yellow onion ((1 medium))

1 1/3 cups

diced carrots ((about 3 medium))

6 oz

cremini mushrooms (, sliced)

3 cloves

garlic (, minced)

4 1/2 cups

low-sodium chicken broth

1 lb

bonless skinless chicken breasts (, pounded evenly to about 1/2-inch thickness)

1 tsp

dried oregano

1/2 tsp

dried thyme

Salt and freshly ground black pepper

1/4 cup

unsalted butter (, sliced into 1 Tbsp pieces)

1/3 cup

flour

2 1/2 cups

milk

9 oz

refrigerated three cheese tortellini

4 oz

fresh spinach ((4 cups))

1/3 cup

heavy cream

Finely shredded parmesan cheese (, for serving)