This fiber-rich soup is an easy, healthy dinner when you’re pressed for time. This brothy soup is finished with a bit of heavy cream for body and richness. For a thicker soup, mash 1/2 cup of the beans and stir into the soup right before adding the cream. Frozen sweet potatoes and collard greens keep the prep to a minimum, but if you have a little extra time on your hands, fresh veggies work just as well. Serve with crusty bread for dunking.