I made this healthy and delicious soup during my week of cooking recipes from France. Traditionally three types of fresh white beans would be used along with the other vegetables. This recipe from Patricia Lousada uses dried haricot beans, but I substituted a tin of cannellini beans which was fine if not authentic. I also substituted Butternut squash for the broad beans and made the pistou using wild garlic leaves rather than basil. I think it is even better the next day.