Made with just three ingredients—tortellini, broth, and (at least in my version) spinach or other greens ... or enough that it feels like a brothy soup, whichever you prefer.
Then, reduce the heat to low and allow the soup to simmer for 10 minutes. Stir in the tortellini and spinach, then leave to cook for a further 5 minutes. You’ll need to stir it every minute or ...