Butternut Squash and Sausage Pasta

Name: Butternut Squash and Sausage Pasta
Ingredients: 2 1/2 cups small cauliflower florets (1-inch pieces); 2 cups chopped butternut squash (1/2-inch cubes); 1 tablespoon extra-virgin olive oil; 3/4 teaspoon kosher salt, plus more for water; 12 ounces uncooked orecchiette pasta; 4 tablespoons unsalted butter; 2 rosemary sprigs; 10 small fresh sage leaves, plus 1 teaspoon chopped fresh sage, divided; 12 ounces sweet or hot Italian sausage, casings removed; 2 shallots, chopped (1/2 cup); 2 teaspoons finely chopped garlic (from 2 large cloves); 1/4 teaspoon crushed red pepper; 1/2 cup dry white wine; 2 ounces Parmigiano-Reggiano cheese, grated on smallest holes of box grater (1/2 cup), plus more for