You can freeze this soup, but be aware that the texture will not be the same when you reheat it. It will still taste just as delicious though, so if you aren't concerned with texture, go ahead and freeze it. Otherwise, leftovers will stay good in the fridge for 2-3 days. If you are saving some for leftovers, I recommend setting aside the garnish as well and then topping the soup after it has been reheated.