Add the chicken broth to the slow cooker, add the cayenne, garlic powder, onion powder, oregano, red pepper flakes, paprika, salt and pepper. Stir.
Add the chicken breasts and flip them around in the seasoned chicken broth to get the seasonings on the chicken.
Sprinkle the onions over the chicken and broth.
Cover and cook on low for 6 hours without opening the lid during the cooking time.
After the cooking time is done, shred the chicken with two forks right in the slow cooker. Add the heavy cream.
Add the cooked and drained pasta and a ½ cup of the Parmesan cheese. Stir.
Sprinkle over the remaining parmesan cheese. I added a touch more paprika and also parsley flakes to the top of my pasta to make it look pretty. Cover and cook for 20 more minutes. Cooking for a bit longer helps the sauce thicken from the gluten in the pasta.
Serve and enjoy!
To make this a complete meal stir in steamed veggies into the pasta with the noodles at the end of the cooking time.
You can add a block of cream cheese to this dish instead of heavy cream. You can add it at the beginning of the cooking time or microwave it for 30 seconds before adding the dish at the end of the cooking time.
Cayenne pepper loses its potency the longer it's been on the shelf or it can sometimes not be as spicy as other brands. You can add additional cayenne pepper after the dish is done cooking to taste.
You can use two teaspoons of cajun spice seasoning (such as Tony's Chachere's Creole Seasoning) instead of the different seasonings in this dish. Don't add any more, for it can be on the salty side.