TasteofHome.com publishes a good recipe for navy bean soup that involves first sorting 3 pounds of dried navy beans and soaking them according to the instructions on the package, draining and rinsing the beans, and discarding the liquid. Place the beans in a Dutch oven.
Add 1 can (14-1/2-ounce) of undrained diced tomatoes, 1 large chopped onion, 1 meaty ham hock and 2 cups of chicken broth to the Dutch oven. Add salt and pepper to taste. Bring the ingredients to a boil, then reduce the heat, cover the Dutch oven and simmer for 1 ½ hours or until the beans are tender, adding additional water as needed.
Remove the ham hock from the beans, let it cool, remove the meat from the bone and cut it into pieces. Return the ham pieces to the Dutch oven and heat until the ham pieces are thoroughly heated.