Gorgonzola Macaroni and Cheese with Butternut Squash and Pickled Pears

Name: Gorgonzola Macaroni and Cheese with Butternut Squash and Pickled Pears
Ingredients: Pickled Pears (based on this recipe: https://www.bbcgoodfood.com/recipes/1302/pickled-pears); 2 medium pears, I used Bosc; 1/2 peel of an orange; 2 whole cloves; 8 black peppercorns; 3 allspice berries; 1 cup apple cider vinegar; 1/2 cinnamon stick; 1/3 cup granulated sugar; Baked Mac and Cheese; 1 pound pasta, I used ziti rigate; 2 pounds butternut squash; 2 tablespoons extra virgin olive oil; 1/4 teaspoon ground cloves; 1/4 teaspoon ground ginger; 1/4 teaspoon ground cinnamon; 1 teaspoon ground coriander; 1/4 teaspoon ground nutmeg; 1/4 teaspoon ground allspice; 1 teaspoon cumin; 1 1/4 teaspoons kosher salt, divided; 1/2 teaspoon ground black pepper, divided; 9 tablespoons unsalted butter, divided; 6 tablespoons flour; 1/4 teaspoon ground mustard; 4 cups whole milk; 1 cup crumbled gorgonzola cheese; 1/2 cup shredded manchego cheese; 1 cup shredded fontina cheese; 1/2 cup sharp yellow cheddar cheese