Into a large skillet, add olive oil, onions, celery, and carrots. Saute the vegetables over medium heat for about 15 minutes. The combination of these 3 vegetables is called a Soffritto or “holy trinity” in Italian cooking, and is the flavor base of countless dishes.
The vegetables are done when they have begun to brown and caramelize. Do not rush this step – the browned bits are the first step to producing a traditional, flavorful sauce.
Add in the ground turkey, and break it up while allowing it to brown and cook through.
Into the pan, add the minced garlic and tomato paste. Sauté along with the turkey and soffritto, for about 5 minutes.
Into the pan, add chicken broth, crushed tomatoes, bay leaves, fresh herbs, and the optional parmesan rind. Bring the sauce to a low simmer, and allow to cook for 15-20 minutes.
Remove the herbs from the sauce, and stir in heavy cream, if desired.
Serve the sauce hot over pasta, gluten free pasta, spaghetti squash, zucchini noodles, or grain of choice. Garnish with grated parmesan cheese, fresh basil, and red pepper flakes, if desired.