01 - Heat olive oil in a large skillet or Dutch oven over medium heat. Add the onion, carrots, and celery. Sauté for 5-6 minutes, until softened.
02 - Add the garlic and cook for 1 minute, until fragrant.
03 - Add the ground turkey, breaking it up with a spoon. Cook until browned and cooked through, about 6-8 minutes.
04 - Stir in tomato paste, cooking for 1 minute. Add crushed tomatoes, chicken broth, oregano, basil, thyme, and red pepper flakes. Season with salt and pepper.
05 - Reduce heat to low and simmer uncovered for 25-30 minutes, stirring occasionally, until the sauce thickens.
06 - While the sauce simmers, heat a large nonstick skillet over medium-high heat. Add spiralized zucchini and cook for 2-3 minutes, tossing gently, until just tender but not soggy.
07 - To serve, divide zucchini noodles among plates. Spoon turkey Bolognese sauce over the noodles and garnish with chopped parsley.