01 - Heat olive oil in a large skillet or Dutch oven over medium heat. Add onion, carrot, celery, and bell pepper; sauté for 5 to 7 minutes until tender.
02 - Incorporate minced garlic and cook for 1 minute until fragrant.
03 - Add ground beef, breaking it apart with a spoon. Cook for 6 to 8 minutes until thoroughly browned. Drain excess fat if necessary.
04 - Stir in tomato paste, crushed tomatoes, oregano, basil, thyme, crushed red pepper flakes, salt, and black pepper until fully combined.
05 - Pour in red wine and broth, add bay leaf. Bring to a simmer, partially cover, and cook over low heat for 25 to 30 minutes, stirring occasionally.
06 - While sauce simmers, heat a large skillet over medium-high heat. Sauté zucchini noodles for 2 to 4 minutes until tender but still firm.
07 - Remove bay leaf from sauce. Taste and adjust seasoning as needed.
08 - Divide zucchini noodles among plates. Top with meat sauce and garnish with grated Parmesan and chopped basil if desired.