Begin by evenly rubbing chicken breasts with Cajun seasoning, garlic powder, paprika, salt, and pepper. Optionally, marinate for 15-20 minutes for bolder flavor.

Place the seasoned chicken in your slow cooker, add sliced bell peppers, onion, and chicken broth. Cook on low for 6-7 hours or high for 3-4 hours.

Once cooked, remove and shred the chicken using two forks. Return the shredded chicken to the slow cooker.

Stir in cream cheese and Parmesan cheese until melted and creamy. Cook on low for an additional 10-15 minutes.

Prepare pasta according to package directions until al dente, then drain.

Add the cooked pasta to the creamy sauce, mixing until evenly coated. Serve hot.