It’s spring in Boston! Meaning it’s moving to be consistently above freezing during the day. Here’s a bright, vibrant soup to transition from those cold, bundled up winter days to I-just-need-a-light-jacket. Black Bean Soup is a pantry staple. Chances are you have a can of black beans or a bag of dry black beans sitting around in your pantry. Add some veggies and spices, top with avocado, Greek yogurt (or sour cream) and some lime juice for a colorful, light, yet filling soup.