Rub the chicken breasts with Cajun seasoning, garlic powder, paprika, salt, and pepper. For a richer flavor, consider marinating for 15-20 minutes.

Place the seasoned chicken in the slow cooker, layering with sliced bell peppers and onion.

Pour in the chicken broth and set the slow cooker to low for 6–7 hours or high for 3–4 hours.

An hour before serving, shred the chicken with forks and return it to the slow cooker.

Add the cream cheese and Parmesan cheese, stirring until melted and creamy. Cook for an additional 10-15 minutes on low.

Meanwhile, cook the pasta according to the package instructions until al dente. Drain and mix into the slow cooker.

Serve hot, garnished with fresh parsley, extra cheese, and crushed red pepper flakes for added spice.