Split-Pea Soup with Ham

INGREDIENTS

• 1 tablespoon olive oil
• 1 chopped medium onion
• 4 carrots, thinly sliced
• 3 celery stalks, thinly sliced
• 1 tablespoon dried thyme leaves
• Coarse salt and ground pepper
• 1 can (14.5 ounces) reduced-sodium chicken broth
• 1 bag (16 ounces) green split peas, picked over and rinsed
• Ham bone plus 2 cups reserved ham from the recipe , cut into 1/2-inch cubes Glazed Ham with Apricot-Mustard Sauce
• 2 tablespoons butter
• 4 slices whole-wheat sandwich bread, crusts removed, cut into 1/4-inch cubes
• 1 to 2 tablespoons fresh lemon juice