01 - Heat olive oil in a large skillet over medium heat. Add onion, carrots, celery, and red bell pepper. Cook for 5-6 minutes until vegetables soften.
02 - Incorporate minced garlic and cook for 1 minute until fragrant.
03 - Add ground turkey, breaking it up with a spoon, and cook for 5-7 minutes until no longer pink.
04 - Stir in tomato paste, oregano, basil, thyme, and crushed red pepper flakes. Sauté for 1 minute to release aromas.
05 - Pour in crushed tomatoes, chicken broth, and add the bay leaf. Season with salt and pepper. Bring mixture to a simmer.
06 - Reduce heat to low, cover partially, and simmer for 25-30 minutes, stirring occasionally until sauce thickens. Remove bay leaf.
07 - Meanwhile, pat zucchini noodles dry with paper towels.
08 - If desired, sauté zucchini noodles in a dry skillet over medium heat for 2-3 minutes until just tender. Avoid overcooking.
09 - Divide zucchini noodles into bowls. Top evenly with turkey Bolognese sauce. Garnish with fresh basil and Parmesan cheese if desired. Serve immediately.