Baked Rice and Beans with White Veal Sausage

Name: Baked Rice and Beans with White Veal Sausage
Ingredients: 3/4 cup dried white navy beans (5 ounces), soaked overnight and drained; 1 carrot; 1 celery rib; 1 small onion, peeled, plus 1 medium onion, finely chopped; 1 pound slab bacon; 4 whole cloves; 5 thyme sprigs; 1 teaspoon whole black peppercorns; 8 cups water; 1 1/4 pounds white veal sausages, such as bockwurst; 7 tablespoons unsalted butter, 4 tablespoons melted; 2 large garlic cloves, minced; 2 bay leaves; 1 cup carnaroli or arborio rice (7 ounces); 1 cup heavy cream; Salt and freshly ground white pepper; 1 1/2 cups panko (Japanese bread crumbs)