Cuban Collard Green Soup

Ingredients

• 12 oz. pkg. dried Great Northern beans
• about 2 c. cooked, chopped collard greens
• 1 piece lean beef shank
• 1 length chorizo sausage (3 to 4 inches long), thinly sliced
• 1 small green bell pepper, chopped
• 1 onion, chopped
• 4 cloves garlic, minced
• 1 small piece cooked ham, cut in thin strips
• about 4 medium potatoes, diced (use more or less as you like)
• salt and cayenne pepper to taste