Italian Turkey Sausage Soup

Ingredients

• 8 ounces sweet or hot Italian-style turkey sausage (cut into 1/2-inch thick slices)
• 1 tablespoon butter
• 1 tablespoon olive oil
• 2 large carrots, chopped (about 1 1/2 cups)
• 1 medium onion, chopped
• 1 large leek, trimmed, cut lengthwise into four equal pieces and sliced (about 2 cups)
• 1 cup peeled, cubed potatoes
• 4 cups vegetable broth
• 4 cups water
• 1 teaspoon salt
• 1 teaspoon ground black pepper
• 1/2 pound fresh green beans, trimmed and cut into 1-inch pieces
• 2 cups chopped zucchini
• 1 (28-ounce) can crushed tomatoes
• 1/2 pound fresh tomatoes, chopped
• 1 (15-ounce) can cannellini beans, drained and rinsed
• 1/2 cup uncooked bowtie pasta