Butternut Squash Mac and Cheese

  Ingredients 2 tablespoons butter (or olive oil) 12 fresh sage leaves (optional) 3 large cloves garlic, minced 1 pound (about 4 cups) diced butternut squash* 1 1/2 cups vegetable stock (or chicken stock) 1 pound uncooked pasta (I used shells) 2 cups whole milk 8 ounces good-quality sharp cheddar cheese, shredded* fine sea salt…