Rub the chicken breasts with the Cajun seasoning, garlic powder, paprika, salt, and pepper. For enhanced flavor, marinate for 15-20 minutes.

Place the seasoned chicken in the slow cooker, followed by the sliced bell peppers, onion, and chicken broth.

Cover and cook on low for 6-7 hours or on high for 3-4 hours.

Once cooked, remove the chicken and shred it with forks before returning it to the slow cooker.

Add the cubed cream cheese and Parmesan cheese to the slow cooker, stirring until everything is melted and creamy. Cook on low for an additional 10-15 minutes.

In a separate pot, cook the pasta according to package directions until al dente. Drain and mix it into the slow cooker mixture.

Serve hot, garnished with fresh parsley, additional Parmesan cheese, or crushed red pepper flakes as desired.