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