Minestrone with Sausage and Kale

Name: Minestrone with Sausage and Kale
Ingredients: 5 Tbs. olive oil; 1/2 lb. (250 g) mild Italian sausage, casings removed; 1 yellow onion, diced; 2 carrots, peeled and coarsely diced; 1 celery stalk, diced; 2 garlic cloves, minced; 2 cans (each 14 oz./440 g) cannellini beans, drained and rinsed; 4 cups (32 fl. oz./1 l) chicken broth; 1 cup (4 oz./125 g) grated Parmesan cheese; 2 fresh rosemary sprigs; Juice of 1/2 lemon; 1 small baguette, cut on the diagonal into 1/2-inch (12-mm) slices; Kosher salt and freshly ground pepper; 2 bunches kale, stems removed, leaves chopped