Place bacon in a Dutch oven or deep pot with a lid over medium-high heat.
Saute 5 minutes until crisp.
Add ground turkey and ground sausage to pan and cook 6 minutes or until browned.
Stir until it crumbles.
Remove meat mixture from pan.
Add onion, carrot, celery, and garlic; saute 1 minute.
Add stock and bring to a boil. Cook 1 minute, scraping pan to loosen browned bits.
Return meat mixture to pot; stir in tomatoes, pepper, and salt.
Cover, reduce heat to low, and cook 1 hour, stirring several times.
Cook pasta according to box directions. Serve bolognese on top of pasta and top with optional parmesan and chopped parsley.