Butternut Squash and Turkey Lasagna With Chestnut Pasta

Name: Butternut Squash and Turkey Lasagna With Chestnut Pasta
Ingredients: 2 1/2 Pounds butternut squash, halved and seeds removed; 1 Pound fresh homemade chestnut pasta, rolled into sheets (or 1 lb store-bought lasagna noodles); 2 Tablespoons olive oil; 1 Tablespoon minced garlic, about 3 cloves; 1 Cup minced shallots, about 2 large; 1 Pound ground turkey, such as Foster Farms Organic Ground Turkey; 2 Tablespoons fresh sage, chopped; salt and pepper to taste; 4 1/2 Ounces finely grated Parmesan (2-3 cups); 7 Tablespoons unsalted butter; 1/3 Cup sweet rice flour; 4 Cups milk; 2 1/2 Teaspoons salt; 3/4 Teaspoons ground nutmeg