Creamy Pumpkin Pasta Sauce

Bahan-bahan (2 porsi)

• 8 ounces whole wheat fettuccini (or any other long, thin noodle, such as linguine or spaghetti)
• 1 tablespoon unsalted butter
• 1 tablespoon all-purpose flour
• 2 cloves garlic (minced)
• 2 cups nonfat milk
• 1 cup pumpkin puree (not pumpkin pie filling)
• 3 ounces reduced-fat cream cheese (cut into chunks and at room temperature (do not use fat free))
• 1 tablespoon chopped fresh sage leaves (divided)
• 1/2 teaspoon kosher salt
• 1/4 teaspoon ground black pepper
• 1/8 teaspoon ground cinnamon
• 1/8 teaspoon ground nutmeg
• Pinch ground cayenne pepper
• 1/2 cup grated Parmesan cheese (for serving)