Tuscan Barley Soup

Name: Tuscan Barley Soup
Ingredients: 2 tablespoons extra-virgin olive oil; 2 sweet or spicy turkey sausage links, casings removed; 1 cup pearled barley; 8 cups low-sodium vegetable or chicken broth; 2 medium carrots, peeled and thinly sliced into 1/2-inch-thick rounds; 2 medium parsnips, peeled and thinly sliced into 1/2-inch-thick rounds; 2 medium zucchini, halved lengthwise and cut into1/2-inch slices; 1 fennel bulb, thinly sliced; 1 medium leek, thinly sliced; One 12-ounce bunch Swiss or Rainbow chard, center stem removed and leaves chopped into 1-inch pieces; 1 Parmesan cheese rind, optional; 1 dried bay leaf; 2 teaspoons kosher salt; 3/4 teaspoon freshly ground black pepper; 1/4 cup chopped chives