Ribollita

Ingredients

• 13 cups (or more) water, divided
• 1 1/4 cups dried cannellini (white kidney beans; about 8 ounces)
• 12 large fresh sage leaves
• 8 garlic cloves; 5 sliced, 3 chopped
• 2 teaspoons (or more) fine sea salt, divided
• 6 tablespoons extra-virgin olive oil, divided, plus additional for drizzling
• 1 large onion, chopped
• 2 large celery stalks, diced
• 1 medium carrot, chopped
• 1 large unpeeled Yukon Gold potato, scrubbed, cut into 1/2-inch cubes
• 1 small fennel bulb, trimmed, quartered through core, sliced crosswise
• 1 large pinch of dried thyme
• 1 small bunch black kale,* cut crosswise into 1-inch ribbons (about 6 cups)
• 1 small bunch green chard (about 4 large leaves), center stem removed, cut crosswise into 1-inch-wide ribbons (about 6 cups)
• 4 cups thinly sliced savoy cabbage
• 5 large plum tomatoes, chopped
• 1 2-inch square Parmesan cheese rind
• Pinch of dried crushed red pepper
• 2 cups (or more)
• or good-quality canned vegetable broth (such as Swanson)
• 6 1/2-inch-thick slices country white bread, coarsely torn with crusts