Place the boneless chicken breasts in the Crockpot.
In a bowl, combine chicken broth, heavy cream, grated Parmesan cheese, minced garlic, Italian seasoning, salt, and pepper. Mix well.
Pour the mixture over the chicken in the Crockpot, ensuring the chicken is well-coated.
Cover and cook on low for 4 hours or until the chicken is cooked through and tender.
Once cooked, shred the chicken using two forks and stir it back into the sauce.
In a separate pot, cook the pasta according to package instructions until al dente. Drain and set aside.
Once the chicken is shredded, add the cooked pasta into the Crockpot and stir until well combined.
Allow to cook for an additional 10 minutes to let the pasta absorb some of the sauce.
Serve hot, garnished with chopped fresh parsley.