White Beans and Fusilli

Ingredients

• 1 cup Great Northern or cannellini beans, soaked overnight in 3 cups of water to cover and 1/2 teaspoon baking soda
• 1 bay leaf
• 3 cups vegetable stock
• 1/2 cup walnuts
• 5 cups fresh basil
• 5 large cloves garlic, peeled or smashed
• 1/4 cup freshly grated Parmesan cheese
• 2 tablespoons olive oil
• 1 pound fusilli or pasta shells
• 1/2 teaspoon salt
• 1 small onion, chopped (about 1/2 cup)
• 2 cloves garlic, chopped
• 1 bunch escarole, chopped
• 1/3 teaspoon dried rosemary