Add the chicken breasts to the bottom of your slow cooker.
In a separate bowl, mix the Olive Garden Italian dressing, cream, butter, broth, parmesan, pepper & parsley until combined.
Pour the mixture over the chicken breasts
Place the cream cheese on top.
Place the lid on the slow cooker and cook on high for 4 hours or low for 5-6 hours.
When the chicken is tender boil your pasta according to box directions and drain.
Shred the chicken with 2 forks mixing everything together.
Toss the pasta in with the chicken and sauce and sprinkle with extra parmesan cheese if desired.