Using food processor, finely chop vegetables (carrots, onions, celery, pepper) and place in a sprayed slow cooker.
Mix together the ground turkey, chopped vegetables, tomatoes with their juices, garlic, tomato paste, wine, oregano, thyme, bay leaf, 1 tsp. salt and pepper.
Cover and cook until vegetables are tender and the meat is cooked through. On low for 4-6 hours, on high for 3-4 hours.
Fifteen minutes before serving, cook the spaghetti noodles according to the package directions; drain and return to the pot.
Serve in a bowl with cooked pasta, several spoonfuls of Bolognese, and sprinkle with fresh Parmesan cheese.