This simple and elegant soup features tender, cheese-filled tortellini floating in a savory chicken broth with silky ribbons of fresh spinach. Finished with a generous amount of salty Parmesan cheese, it's a restorative and deeply satisfying meal that comes together in under 20 minutes, perfect for a cozy weeknight dinner.
For extra flavor, add a Parmesan rind to the broth as it simmers and remove it before serving. A squeeze of fresh lemon juice or a pinch of red pepper flakes added at the end can brighten the flavors. This recipe is flexible: you can substitute kale for spinach (add it a few minutes earlier), use vegetable broth for a vegetarian version, or use mini ravioli instead of tortellini. For best results, use a high-quality broth as it is the foundation of the soup. Store leftovers in an airtight container in the refrigerator for up to 3 days; note that the tortellini will absorb more broth over time.