Tuscan Broccoli Rabe Winter Soup

Name: Tuscan Broccoli Rabe Winter Soup
Ingredients: 1 bunch broccoli rabe, washed and shredded in pieces; 2 cups cannellini or borlotti beans - cooked; 4 cups bean cooking water; 1 medium blond onion, sliced; 2 garlic cloves, inside green part removed and chopped finely; 2 medium potatoes peeled and cubed small; 1 cup squash, peeled, deseeded and cut in small cubes; 2 medium carrots, peeled and cut in small cubes; 5 tablespoons Extra Virgin Olive Oil; salt; pepper; 4 tablespoons Extra Virgin Olive Oil to drizzle on the soup for garnish; 2 cups Surdough bread cut in pieces to serve