This cheesy Cajun pasta is the boldest most exciting pasta dinner in my entire Golden Recipes collection — and I mean that as an absolute statement of fact. Seasoned ground beef and penne pasta coated in a thick rich Cajun-spiced cream sauce that is simultaneously smoky, slightly spicy, deeply savory, and incredibly creamy — finished with pepper jack and sharp cheddar that add bold cheesy richness and a gooey melted finish that makes every forkful absolutely irresistible. I developed this cheesy Cajun pasta at Golden Recipes when I wanted all the bold smoky fire of great Cajun cooking in a creamy pasta format — and this recipe delivers on every single count. The holy trinity of Cajun cooking — onion, celery, and bell pepper — builds the aromatic base. The fire-roasted tomatoes add depth. And the Cajun spice blend gives everything that unmistakable Louisiana heat and smokiness that makes Cajun food so deeply addictive.
Why You’ll Love This Cheesy Cajun Pasta
The Cajun holy trinity — diced onion, celery, and bell pepper — cooked down in butter until completely soft and slightly golden is the foundation that gives this pasta its authentic Cajun character. This aromatic base is used in virtually every classic Louisiana dish from gumbo to étouffée — and it creates a depth of flavor that no amount of Cajun seasoning sprinkled directly on the meat can replicate. When these three vegetables cook together they create a sweet savory complex base that makes the entire sauce taste like something from a genuine Cajun kitchen.
The fire-roasted tomatoes are the other ingredient that gives this pasta its bold deep flavor. Fire-roasted tomatoes have a smoky caramelized sweetness from the roasting process that regular canned tomatoes completely lack — they add an additional layer of smokiness that amplifies the Cajun seasoning and creates a sauce with real depth and complexity. Combined with the heavy cream that turns the tomato base silky and rich the sauce for this Cajun pasta is genuinely one of the most exciting things I make at Golden Recipes. You should also try our Cajun Beef and Rice Skillet and our Cajun Steak Rigatoni for more incredible Cajun-inspired beef dinners.
Equipment You’ll Need
- Large deep skillet
- Large pot for boiling pasta
- Wooden spoon
- Measuring cups and spoons
Ingredients
- 1 lb lean ground beef
- 12 oz penne pasta
- 2 tablespoons butter
- 1 medium onion, diced
- 2 stalks celery, diced
- 1 green bell pepper, diced
- 4 cloves garlic, minced
- 2 tablespoons Cajun seasoning — divided
- 1 teaspoon smoked paprika
- ½ teaspoon dried thyme
- ¼ teaspoon cayenne pepper
- 1 can (14.5 oz) fire-roasted diced tomatoes
- 1½ cups heavy cream
- ½ cup chicken broth
- 1 teaspoon Worcestershire sauce
- 1½ cups freshly shredded sharp cheddar — divided
- 1 cup freshly shredded pepper jack
- Sliced green onions and fresh parsley for garnish
Substitutions
Italian sausage or Andouille sausage sliced and browned can replace or supplement ground beef for a more authentic Cajun result. Shrimp added in the last 3 minutes creates an incredible surf and turf Cajun pasta. Red bell pepper can replace green for a sweeter less bitter base. For milder heat reduce Cajun seasoning to 1 tablespoon and skip cayenne. Rigatoni or cavatappi work equally well as the pasta. Add frozen corn in the last 3 minutes of cooking for sweetness and color.
How to Make Cheesy Cajun Pasta
Cook the Holy Trinity
Cook the penne 2 minutes less than package directions. Drain and set aside. Melt butter in a large deep skillet over medium heat. Add the diced onion, celery, and bell pepper. Cook for 6 to 7 minutes stirring occasionally until completely softened and slightly golden. Add garlic and cook 1 more minute. The kitchen should smell wonderfully aromatic.
Brown the Beef
Push the vegetables to the side of the skillet. Add the ground beef and break apart over medium-high heat. Season with 1 tablespoon Cajun seasoning, smoked paprika, thyme, cayenne, and black pepper. Cook for 6 to 7 minutes until deeply browned. Combine with the vegetables. Drain any excess fat.
Build the Cajun Cream Sauce
Add the remaining Cajun seasoning and stir for 30 seconds to bloom in the hot pan. Add the fire-roasted tomatoes with their juices and Worcestershire sauce. Stir and cook for 2 minutes. Pour in the heavy cream and chicken broth. Bring to a gentle simmer and cook for 4 to 5 minutes until the sauce thickens and deepens in color. Remove from heat and stir in 1 cup of cheddar and all the pepper jack until fully melted and silky. Fold in the cooked penne. Scatter remaining cheddar across the top. Cover for 2 minutes to melt. Scatter green onions and parsley and serve immediately.
Variations
- Andouille version — replace or supplement beef with sliced Andouille sausage for the most authentic Cajun result
- Shrimp addition — add 1 lb of peeled shrimp in the last 3 minutes for an incredible surf and turf
- Extra smoky — add 1 teaspoon of liquid smoke to the sauce
- Baked version — transfer to baking dish and broil 3 to 4 minutes for a golden cheesy top
- Chicken version — replace beef with sliced seared chicken thighs
What to Serve With It
Warm crusty French bread or cornbread for soaking up the Cajun cream sauce is essential. A simple green salad with lemon vinaigrette cuts through the richness. For a complete Southern Louisiana-inspired dinner serve alongside our Swamp Potatoes for a double Cajun feast night.
Pro Tips
- Cook the holy trinity properly — this is the flavor foundation of the dish
- Bloom Cajun seasoning in the hot pan — unlocks full smoky depth
- Use fire-roasted tomatoes — regular tomatoes give a flat sauce
- Add cheese completely off the heat — silky not grainy
- Serve immediately — pasta absorbs sauce quickly
Common Mistakes
- Rushing the holy trinity — undercooked vegetables give flat flavor
- Using regular tomatoes — fire-roasted are essential for the smoky depth
- Boiling the cream — sauce breaks
- Adding cheese on the heat — grainy sauce
- Under-seasoning — Cajun cooking is bold by nature
Storage and Reheating
Store covered fridge up to 3 days. Reheat stovetop medium-low with splash of cream. Microwave medium power. Does not freeze well — cream sauce separates.
FAQ
What Cajun seasoning do you recommend?
Tony Chachere’s is the gold standard. Any quality blend works — if your blend is salty reduce added salt accordingly. Homemade Cajun seasoning — smoked paprika, garlic powder, onion powder, cayenne, oregano, thyme, black pepper — gives the most customizable result.
Can I use Andouille sausage instead of ground beef?
Yes — slice 1 lb of Andouille into rounds and brown in the butter before adding the holy trinity. Andouille gives the most authentic Cajun flavor and is strongly recommended if you can find it.
Is this very spicy?
Medium heat with standard amounts. Reduce Cajun seasoning to 1 tablespoon and skip cayenne for mild. Double both for genuinely fiery. The cream tames the heat significantly.
What is the holy trinity?
The Cajun holy trinity is diced onion, celery, and green bell pepper — the aromatic vegetable base used in almost all Cajun and Creole cooking. It is the equivalent of the French mirepoix and creates the distinctive character of Louisiana cuisine.
Conclusion
This Cheesy Cajun Pasta is the boldest most exciting pasta dinner you will ever make — smoky Cajun holy trinity base, fire-roasted tomatoes, rich cream sauce, ground beef, and melted cheddar and pepper jack throughout. Make it tonight and bring authentic Louisiana heat to your dinner table.