This Low Calorie Ham and Bean Soup is just 277 calories and can be made in less than 15 minutes!Try this soup recipe for leftover ham after the holidays, and even add in the ham bone to boost flavor (if you do this, make sure to remove when you take out the bay leaves). Special Tip: Ham is very salty, this is why there is no salt added to the recipe. I recommend getting unsalted beans as well to lower the sodium and balance the flavors.