
This spicy Cajun Chicken Alfredo blends smoky Cajun heat with creamy pasta, colorful bell peppers, and perfectly browned chicken for an easy weeknight meal that satisfies spicy and comfort food cravings all at once. Every bite is bold and cozy, making it a favorite for chilly nights or whenever you want something a little extra.
The first time I made this, I could not believe how fast and flavorful it turned out. Now I keep a little jar of homemade Cajun spice ready for nights when my family wants something mouthwatering and quick.
Ingredients
- Paprika: gives the signature smoky Cajun color and flavor look for a deep red variety
- Garlic powder and onion powder: create a savory backbone reach for fresh spices for best impact
- Dried oregano and dried thyme: bring herbal earthiness crush a bit between your fingers before adding to release aroma
- Cayenne pepper: adds that classic heat adjust to taste if you prefer milder spice
- Black pepper and salt: round out the seasoning freshly ground is best
- Penne pasta: short sturdy shape catches plenty of sauce cook just to al dente for perfect texture
- Olive oil and unsalted butter: combine for rich flavor use good quality butter for creaminess
- Chicken breasts: choose boneless and slice thin for fast even cooking go for plump and pink fresh chicken
- Onion: finely diced for sweet aromatic base choose a firm and shiny onion
- Red and green bell peppers: colorful and slightly sweet pick firm peppers with glossy skin
- Garlic: minced to add sharpness and depth buy firm heavy cloves
- Heavy cream: the creamy base of Alfredo sauce look for high quality with no additives
- Parmesan cheese: salty nutty addition freshly grated melts better than pre-shredded
- Salt and black pepper: for seasoning taste before serving and adjust
Step-by-Step Instructions
- Prepare Cajun Seasoning:
- Combine paprika garlic powder onion powder dried oregano dried thyme cayenne pepper black pepper and salt in a small bowl mix thoroughly with a spoon and set aside Use your fingers to break up any lumps for even distribution
- Cook Pasta:
- Fill a large pot with water and bring to a rolling boil Toss in a generous amount of salt and cook the penne pasta according to package instructions until just al dente Stir occasionally to prevent sticking Drain and set aside in a colander
- Brown the Chicken:
- Heat olive oil and butter in a large skillet over medium-high heat Once hot but not smoking season the sliced chicken breasts generously with about a tablespoon of the Cajun seasoning Add chicken to the pan in a single layer Cook undisturbed for 2 to 3 minutes per side until golden brown and cooked through Remove chicken to a plate keeping the drippings in the pan
- Sauté the Vegetables:
- In the same skillet over medium heat add chopped onion and sliced bell peppers Stir often and cook until onions become soft and translucent and peppers are just tender about 4 minutes You want the vegetables softened but still vibrant
- Add Garlic and Seasonings:
- Scatter minced garlic over the veggies and cook about a minute stirring constantly until fragrant Pour in the remaining Cajun seasoning and toss to coat the mixture well This builds a spicy flavor base
- Simmer the Cream Sauce:
- Lower the heat slightly and pour heavy cream into the skillet Stir well scraping up any brown bits from the bottom Simmer gently for around 5 minutes allowing the sauce to thicken and absorb the Cajun spices Be careful not to boil
- Combine Everything:
- Return the cooked chicken to the skillet and add drained penne pasta Toss everything together to coat evenly in the sauce Sprinkle Parmesan cheese over the pan stirring until it melts and the dish looks silky If the sauce thickens too much add a splash of reserved pasta water
- Serve and Garnish:
- Spoon the hot pasta into bowls and finish with extra Parmesan and a handful of chopped fresh parsley Serve right away for best creaminess

I always reach for freshly grated Parmesan because it melts in a way no store shredded cheese can. My kids’ favorite part is swirling the pasta ribbons to pick up every drop of the spicy creamy sauce after a long day.
Storage Tips
Keep leftovers in an airtight container in the fridge for up to three days. When reheating add a splash of milk or water and warm gently on the stove top which keeps the sauce creamy.
Ingredient Substitutions
Swap penne for fettuccine or rotini if you have those on hand. Can use shrimp or turkey breast instead of chicken just watch the cooking time so they do not dry out.
Serving Suggestions
This rich pasta goes beautifully with a simple side salad made from crisp greens and a tangy vinaigrette or steamed broccoli. Garlic bread is always popular and soaks up the zesty sauce perfectly.

Cajun Pasta’s Roots
Though Alfredo is originally Italian Cajun seasoning is a proud Southern staple bringing the spice and warmth of Louisiana to this classic creamy dish. Meals like this blend traditions and make any dinner table feel inviting.
Frequently Asked Questions
- → How spicy is this dish?
The level of heat depends on the amount of cayenne in the Cajun seasoning. You can customize the spice to match your preference by adjusting the cayenne pepper.
- → Can a different pasta be used?
Absolutely! Penne works great, but fettuccine or rigatoni also pair well with the creamy sauce and chicken.
- → How do I keep the sauce creamy?
Avoid overheating the cream and add the parmesan gradually off the heat to prevent the sauce from splitting or becoming grainy.
- → What vegetables work well in this dish?
Bell peppers add sweetness and color, while onions and garlic deepen the flavor. You can also add mushrooms or spinach if desired.
- → Can leftovers be reheated?
Yes, gently reheat over low heat, adding a splash of cream or milk to maintain the creaminess of the sauce.
- → Is it possible to make this dairy-free?
Try using dairy-free cream and vegan parmesan alternatives for a similar rich texture and flavor with no dairy.