Turkey Meatballs:

• 1.5 lbs ground turkey (preferably 93% lean)
• 1/2 cup panko breadcrumbs
• 1/4 cup grated Parmesan cheese
• 1 large egg, lightly beaten
• 1/4 cup finely chopped yellow onion
• 2 cloves garlic, minced
• 1 tablespoon chopped fresh sage
• 1 teaspoon dried thyme
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1 tablespoon olive oil (for browning)

Pumpkin Sage Sauce:

• 1 tablespoon olive oil
• 1 small yellow onion, finely chopped
• 2 cloves garlic, minced
• 1 (15 ounce) can pumpkin puree (not pumpkin pie filling)
• 1 cup chicken broth
• 1/2 cup heavy cream
• 1/4 cup grated Parmesan cheese
• 2 tablespoons chopped fresh sage
• 1 teaspoon dried thyme
• 1/4 teaspoon nutmeg
• Salt and pepper to taste
• Fresh sage leaves, grated Parmesan cheese, Red pepper flakes (for garnish)