***If you want to make this soup ahead of time and then freeze it, I would do steps 1-3, then freeze that portion of the soup (and if you want, you can freeze the spinach, too – just set aside the 3 cups of fresh spinach in a plastic baggie and place it in the freezer). Then when you’re ready to cook it, thaw the soup, bring it to a boil in the sauce pan, and then add the pasta and simmer until it’s tender. Add the frozen spinach to the soup and allow it to cook, probably 5-7 minutes or until it’s wilted (it’ll thaw very quickly in the soup, so you really don’t need to cook it much longer than the 3-5 minutes if you were cooking the fresh spinach right away).