White Bean, Ham and Kale Soup

I'm dealing with a lot of leftover ham from our Christmas ham, so last night I made an easy and tasty soup from the bone and some chopped up pieces of meat. It was simple and most of that time I was laying on the couch while it simmered away. Uh, rather I was, um, doing my taxes. I served it with corn muffins.

White Bean, Ham and Kale Soup

2 tablespoons olive oil
1 medium to small yellow onion, diced
2 celery stalks, chopped
1 ham bone plus 1.5 cup diced ham (about 3/4-inch pieces)
1 15-ounce can diced tomatoes
1 15-ounce can great northern beans
3 cups chicken stock
2 cup fresh kale, cut into strips

Heat oil over medium heat. Saute onions and celery about 5 minutes, stirring often. Add ham and bone, stirring for 1 minute. Add tomatoes, beans and chicken stock, stir and bring to a boil. Reduce to simmer and cook for 35-45 minutes. Stir in kale. Cook for 5 minutes. Serves 4.