I seared sirloin with lively Cajun seasoning and paired it with silky Alfredo and fettuccine in my Creamy Cajun Steak Alfredo Pasta, resulting in a bold, indulgent dinner that sparks curiosity.

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I crave bold food, so I chased a recipe idea that sounds impossible: Cajun Steak Alfredo. I imagined a charred sirloin steak sliced over a very silky bed that’s been calmed by heavy cream, but still kicks back with smoke.

It’s indulgent, not cloying, and kinda dangerous on a weeknight when you don’t want to think. I’ve made versions that veer too rich or too flat, but this one finds the edge.

Sometimes I mess up the sear, or over-salt, but when it hits right it’s pure Creamy Cajun Steak Alfredo Pasta magic. You’ll want to know how.

Ingredients

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Lean, beefy and protein packed, gives the dish meaty bite and bold flavor.
Ultra rich and silky, it makes the sauce decadent but high in fat.
Broad noodles hold creamy sauce well, mostly carbs so it fills you up.
Sharp, salty and nutty, adds umami and helps thicken the sauce.
Spicy, smoky and aromatic, brings heat, depth and Southern personality.
Pungent, aromatic little bulbs, brighten flavors and cut richness a bit.
Butter lends creaminess, oil prevents burning and helps sear steak.

Ingredient Quantities

1 lb sirloin steak

1 tbsp olive oil

2 tbsp unsalted butter

1 1/2 cups heavy cream

12 oz fettuccine pasta

2 cloves garlic, minced

1 1/2 cups freshly grated Parmesan cheese

2 tbsp cajun seasoning

1 tsp kosher salt

1/2 tsp freshly ground black pepper

2 tbsp chopped fresh parsley (optional)

How to Make this

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1. Bring a large pot of water to a boil, stir in the 1 tsp kosher salt, add the 12 oz fettuccine and cook until just al dente (follow package, usually 9-11 min); before draining scoop out and reserve about 1 cup of the pasta water.

2. While the water heats, pat the 1 lb sirloin steak dry with paper towels, rub it all over with the 2 tbsp cajun seasoning (press it in), let it sit at room temp for about 5-10 minutes so it cooks more evenly.

3. Heat a large skillet over medium-high heat until very hot, add the 1 tbsp olive oil, then lay the steak in the pan and sear without moving 3-4 minutes per side for a roughly 1 inch steak for medium-rare, or longer for your preferred doneness; remove the steak to a cutting board and tent loosely with foil to rest 5-10 minutes.

4. Reduce the pan heat to medium, add the 2 tbsp unsalted butter and melt, then add the 2 cloves minced garlic and sauté about 30-45 seconds until fragrant but not brown.

5. Pour in the 1 1/2 cups heavy cream and use a wooden spoon to scrape up the browned bits from the steak, bring the cream to a gentle simmer and let it reduce a little for 3-4 minutes so it thickens slightly.

6. Turn heat to low or briefly take the pan off the heat and slowly whisk in the 1 1/2 cups freshly grated Parmesan cheese until silky, add the 1 tsp kosher salt (if you used it in the pasta water you might want less) and the 1/2 tsp freshly ground black pepper, taste and adjust, dont let the sauce boil or the cheese will get grainy.

7. Add the drained fettuccine to the sauce and toss to coat, if the sauce seems too thick add a few tablespoons of the reserved pasta water at a time until you reach a creamy consistency that clings to the noodles.

8. Slice the rested sirloin thinly against the grain, this makes it tender and easier to chew, fan the steak slices over the Alfredo pasta.

9. Spoon any pan juices into the dish, sprinkle the 2 tbsp chopped fresh parsley on top if using, give one last sprinkle of Parmesan if you want, and serve right away while everything is warm and indulgent.

Equipment Needed

1. Large pot for boiling the fettuccine, big enough to let noodles move around
2. Colander to drain the pasta (and catch any rogue noodles)
3. Heatproof measuring cup or ladle to scoop and reserve about 1 cup pasta water
4. Large heavy skillet (12 inch ish) for searing the steak and making the sauce
5. Chef’s knife and cutting board for resting and slicing the sirloin
6. Tongs to turn the steak and toss the pasta in the sauce
7. Wooden spoon to scrape up browned bits from the pan
8. Whisk to slowly blend in the Parmesan so the sauce stays silky
9. Box grater or microplane for freshly grated Parmesan, plus foil and paper towels for resting and clean up

FAQ

Q: How long does this take to make? A: About 30 to 35 minutes total. Prep 10 minutes, pasta 10 to 12 minutes, steak and sauce 15 to 20 minutes, give the steak 5 minutes to rest.

Q: How do I get the steak tender and not overcooked? A: Bring the sirloin to room temp, pat it dry, then sear on high 2 to 3 minutes per side for medium rare if it's about 1 inch thick. Let it rest 5 minutes and slice against the grain. If your steak is thicker cook a little longer but watch it, you can always cook more but cant undo overcooking.

Q: My sauce got grainy or split how do I avoid that? A: Keep the cream at low heat, don't boil it. Add the Parmesan slowly off or over very low heat so it melts smooth. If it starts to look grainy, add a splash of pasta water and stir, that usually brings it back.

Q: Can I swap the pasta or make it gluten free? A: Yes. Use any long pasta like linguine or tagliatelle, or a gluten free fettuccine. Cook times vary so check the package. Note gluten free pasta can soak up more sauce so you might need a little extra cream or pasta water.

Q: How do I store and reheat leftovers? A: Store in an airtight container in the fridge up to 3 days. Reheat gently in a skillet with a splash of cream or milk over low heat while stirring. Microwaving works if you do short bursts and stir between them. Freezing isn't great because the cream can separate.

Q: Want it milder or hotter or maybe with chicken? A: To make it milder cut the Cajun to 1 tbsp and taste before adding salt. For more heat add a pinch of cayenne or extra Cajun. You can swap steak for chicken breast or shrimp, just adjust cook times and finish the same way, slice chicken thin against the grain like the steak.

Creamy Cajun Steak Alfredo: Bold & Indulgent Recipe Substitutions and Variations

Sirloin steak: flank steak (lean, slice thin across the grain), skirt steak (more beefy flavor, sears fast), ribeye (more marbling if you want a richer sauce)
Heavy cream: half and half + 2 tbsp melted butter per cup, whole milk thickened with 1 tbsp cornstarch per cup, full-fat coconut milk for a dairy free option
Parmesan cheese: Pecorino Romano (saltier and sharper), Asiago (milder, melts nicely), Grana Padano (very similar but usually cheaper)
Cajun seasoning: Creole seasoning (less heat, more herbs), make your own with paprika, garlic powder, onion powder, cayenne and oregano, smoked paprika + cayenne for a smoky spicy twist

Pro Tips

1) Use an instant read thermometer, it’s way easier than guessing. Aim for about 125 F for medium rare since the steak will climb a few degrees while it rests.

2) Always grate real Parmesan yourself. Pregrated stuff has anti caking agents and it won’t melt into a silky sauce the same way fresh will.

3) If the sauce starts to look grainy or too thick, don’t panic. Whisk in a tablespoon or two of the hot reserved pasta water until it smooths out and clings to the noodles.

4) Let the steak rest 5 to 10 minutes and then slice thinly against the grain. Resting keeps the juices in and thin slices feel way more tender when you eat it.

Creamy Cajun Steak Alfredo: Bold & Indulgent Recipe

Recipe by Tessa Jones

0.0 from 0 votes

I seared sirloin with lively Cajun seasoning and paired it with silky Alfredo and fettuccine in my Creamy Cajun Steak Alfredo Pasta, resulting in a bold, indulgent dinner that sparks curiosity.

Servings

servings

Calories

1082

kcal

Equipment: 1. Large pot for boiling the fettuccine, big enough to let noodles move around
2. Colander to drain the pasta (and catch any rogue noodles)
3. Heatproof measuring cup or ladle to scoop and reserve about 1 cup pasta water
4. Large heavy skillet (12 inch ish) for searing the steak and making the sauce
5. Chef’s knife and cutting board for resting and slicing the sirloin
6. Tongs to turn the steak and toss the pasta in the sauce
7. Wooden spoon to scrape up browned bits from the pan
8. Whisk to slowly blend in the Parmesan so the sauce stays silky
9. Box grater or microplane for freshly grated Parmesan, plus foil and paper towels for resting and clean up

Ingredients

1 lb sirloin steak
1 tbsp olive oil
2 tbsp unsalted butter
1 1/2 cups heavy cream
12 oz fettuccine pasta
2 cloves garlic, minced
1 1/2 cups freshly grated Parmesan cheese
2 tbsp cajun seasoning
1 tsp kosher salt
1/2 tsp freshly ground black pepper
2 tbsp chopped fresh parsley (optional)

Directions

Bring a large pot of water to a boil, stir in the 1 tsp kosher salt, add the 12 oz fettuccine and cook until just al dente (follow package, usually 9-11 min); before draining scoop out and reserve about 1 cup of the pasta water.
While the water heats, pat the 1 lb sirloin steak dry with paper towels, rub it all over with the 2 tbsp cajun seasoning (press it in), let it sit at room temp for about 5-10 minutes so it cooks more evenly.
Heat a large skillet over medium-high heat until very hot, add the 1 tbsp olive oil, then lay the steak in the pan and sear without moving 3-4 minutes per side for a roughly 1 inch steak for medium-rare, or longer for your preferred doneness; remove the steak to a cutting board and tent loosely with foil to rest 5-10 minutes.
Reduce the pan heat to medium, add the 2 tbsp unsalted butter and melt, then add the 2 cloves minced garlic and sauté about 30-45 seconds until fragrant but not brown.
Pour in the 1 1/2 cups heavy cream and use a wooden spoon to scrape up the browned bits from the steak, bring the cream to a gentle simmer and let it reduce a little for 3-4 minutes so it thickens slightly.
Turn heat to low or briefly take the pan off the heat and slowly whisk in the 1 1/2 cups freshly grated Parmesan cheese until silky, add the 1 tsp kosher salt (if you used it in the pasta water you might want less) and the 1/2 tsp freshly ground black pepper, taste and adjust, dont let the sauce boil or the cheese will get grainy.
Add the drained fettuccine to the sauce and toss to coat, if the sauce seems too thick add a few tablespoons of the reserved pasta water at a time until you reach a creamy consistency that clings to the noodles.
Slice the rested sirloin thinly against the grain, this makes it tender and easier to chew, fan the steak slices over the Alfredo pasta.
Spoon any pan juices into the dish, sprinkle the 2 tbsp chopped fresh parsley on top if using, give one last sprinkle of Parmesan if you want, and serve right away while everything is warm and indulgent.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.