I grew up with pasta nights where bold flavors meant everyone at the table paused mid-bite to ask for seconds. This Creamy Cajun Steak Penne Pasta brings that same crowd-pleasing moment to your weeknight rotation: tender sirloin strips seared to a caramelized edge, tossed with al dente penne and an ultra-silky, cheesy cream sauce spiked with Cajun warmth. If you enjoy creamy Cajun pasta with a protein swap, you might also like this creamy Cajun chicken pasta recipe that uses the same saucy base.

Why you’ll love this dish

This recipe hits several home-cooked sweet spots. It is fast enough for a weeknight yet rich enough to serve when friends drop by. The sirloin cooks quickly and stays juicy because it is sliced thin before searing. The sauce combines three kinds of cheese plus cream and cream cheese for a glossy, clingy texture that coats every noodle. It is flexible too: scale it for leftovers, tone down the Cajun if kids are eating, or dial spices up for a bolder finish. Make it when you want something comforting, slightly spicy, and impressive without hours at the stove.

The cooking process explained

Before you start, here is the quick roadmap so you know what to expect.

1. Boil the penne until tender and set it aside.
2. Toss the steak with oil and spices, then sear briefly so the strips brown but remain juicy.
3. Use the skillet fond to build a quick roux, then add cream and milk and reduce until slightly thickened.
4. Stir in mozzarella, Parmesan, and cream cheese for an ultra-creamy sauce.
5. Toss the pasta into the sauce and top with the Cajun steak. Garnish and serve.
   This sequence keeps the steak from overcooking and ensures the sauce finishes silky and smooth.

What you’ll need

• 1.25 lb sirloin steak, sliced into bite-size strips
• 12 oz penne pasta
• 2 tbsp olive oil
• 1 tbsp Cajun seasoning (use a mild blend if you prefer less heat)
• 1 tsp garlic powder
• 1 tsp smoked paprika
• 1/2 tsp salt
• 1/2 tsp black pepper
• 2 tbsp butter, plus extra for sauce if needed
• 3 cloves garlic, minced
• 2 cups heavy cream
• 1 cup whole milk (or use more cream for extra richness)
• 1.5 cups shredded mozzarella cheese
• 1 cup freshly grated Parmesan cheese
• 4 oz cream cheese, softened
• 1 tsp garlic powder (for sauce)
• 1/2 tsp onion powder (for sauce)

Notes and substitutions: swap sirloin for flank or skirt if those are on sale but slice thinly across the grain. If you want a lighter version, use half-and-half instead of heavy cream and reduce the cheese by a small amount, though the sauce will be less decadent.

Step-by-step instructions

1. Bring a large pot of salted water to a rolling boil. Cook the penne until just tender then drain and set aside. Reserve a half cup of pasta water.
2. In a bowl, toss the steak strips with 2 tbsp olive oil, 1 tbsp Cajun seasoning, 1 tsp garlic powder, 1 tsp smoked paprika, 1/2 tsp salt, and 1/2 tsp black pepper until evenly coated.
3. Heat a large skillet over medium-high heat. Add 2 tbsp butter and let it foam. Add the steak strips in a single layer and sear for 2 to 3 minutes per side until browned but still slightly pink inside. Remove steak to a plate.
4. Add the minced garlic to the pan and cook for about 30 seconds until fragrant, scraping up any browned bits. Remove the garlic with the steak so it does not burn.
5. In the same skillet, melt another tablespoon of butter. Sprinkle in 1 tbsp flour and whisk to form a roux; cook for 1 minute to eliminate raw flour taste.
6. Slowly whisk in 2 cups heavy cream and 1 cup whole milk until smooth. Bring to a gentle simmer and cook until the mixture thickens slightly, about 3 to 5 minutes.
7. Reduce heat to low and stir in 1.5 cups shredded mozzarella, 1 cup grated Parmesan, and 4 oz softened cream cheese. Stir continuously until the cheeses melt and the sauce becomes thick and glossy.
8. Season the sauce with 1 tsp garlic powder, 1/2 tsp onion powder, and additional salt and pepper to taste. If the sauce is too thick, loosen with a splash of reserved pasta water.
9. Add the cooked penne to the skillet and toss to coat evenly, letting the pasta absorb the sauce for a minute.
10. Top the sauced pasta with the seared Cajun steak. Gently toss to combine or layer the steak on top for a restaurant-style presentation.
11. Garnish with chopped parsley, extra grated cheese, and red pepper flakes if you like a little more heat.

Best ways to enjoy it

Serve this pasta straight from the skillet for a rustic feel or plate it with the steak arranged on top for a cleaner presentation. Pair it with a crisp green salad dressed in lemon vinaigrette to cut through the richness. Garlic bread or toasted baguette slices are great for sopping up any leftover sauce. For a lighter side, roast asparagus or sautéed green beans with a squeeze of lemon work well.

Storage and reheating tips

Cool leftovers to room temperature within two hours, then refrigerate in an airtight container for up to three days. Reheat gently on the stovetop over low heat with a splash of milk to revive the sauce; stir often to prevent scorching. In the microwave, heat in short intervals at medium power and stir between blasts. To freeze, portion into freezer-safe containers and freeze for up to two months. Thaw overnight in the refrigerator before reheating. Always reheat until the internal temperature reaches 165°F to ensure safe consumption.

Helpful cooking tips

• Pat the steak dry before seasoning so the surface browns instead of steaming.
• Slice steak across the grain for the most tender bite.
• Don’t rush the roux; cooking the flour briefly prevents a raw flour taste in the sauce.
• Use freshly grated Parmesan for melt and flavor. Pre-grated cheese contains anti-caking agents that can make the sauce grainy.
• Reserve pasta water before draining. A tablespoon or two loosens the sauce and helps it cling to the noodles.
• If you prefer a firmer sauce, reduce the milk slightly or simmer a minute longer; for a silkier sauce, add a touch more cream.

Recipe variations

• Swap the steak for thin-sliced chicken breast or thighs for a milder, family-friendly option. If you want a ready guide for that swap, see a chicken-powered variation that uses the same creamy base.
• Make it lighter by using half-and-half and reducing mozzarella. Expect a thinner, less indulgent sauce.
• Add roasted bell peppers or sautéed mushrooms for extra texture and color.
• For a smoky heat profile, increase smoked paprika by 1/2 teaspoon and add a pinch of cayenne.

Common questions

How long does this recipe take from start to finish?

Active time is about 25 to 30 minutes. That includes prepping the steak and garlic, cooking the pasta, searing the steak, and finishing the sauce. It is an excellent quick dinner when you want maximum flavor with minimum fuss.

Can I make this ahead of time for a crowd?

Yes. Prepare the sauce and steak separately and refrigerate for up to a day. Reheat the sauce gently and toss with freshly cooked pasta just before serving to avoid the noodles soaking up too much liquid. If you must assemble ahead, slightly undercook the pasta so it does not turn mushy when reheated.

What if I do not have cream cheese or heavy cream?

You can substitute cream cheese with a mascarpone or an additional 1/2 cup of full-fat ricotta for a slightly different texture. For heavy cream, use whole milk plus an extra ounce of cream if you have it, but the sauce will be thinner and less rich.

Is this safe for kids?

Yes, simply reduce or omit the red pepper flakes and use a milder Cajun blend to lower the heat. The cheeses and cream make it very kid-friendly once the spice is adjusted.

Can I make this gluten-free?

Yes. Use a gluten-free pasta and substitute the roux with a cornstarch slurry. To do that, whisk 1 tablespoon cornstarch into 2 tablespoons cold milk and add it to the simmering cream mixture, cooking until thickened.

Creamy Cajun Steak Penne Pasta

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A comforting and slightly spicy pasta dish featuring tender sirloin strips and a rich, cheesy Cajun cream sauce, perfect for weeknight dinners or entertaining.

• Prep Time: 15 minutes
• Cook Time: 30 minutes
• Total Time: 45 minutes
• Yield: 4 servings 1x
• Category: Main Course
• Method: Searing and Simmering
• Cuisine: Cajun
• Diet: None

Ingredients

Scale 1x2x3x

• 1.25 lb sirloin steak, sliced into bite-size strips
• 12 oz penne pasta
• 2 tbsp olive oil
• 1 tbsp Cajun seasoning
• 1 tsp garlic powder
• 1 tsp smoked paprika
• 1/2 tsp salt
• 1/2 tsp black pepper
• 2 tbsp butter
• 3 cloves garlic, minced
• 2 cups heavy cream
• 1 cup whole milk
• 1.5 cups shredded mozzarella cheese
• 1 cup freshly grated Parmesan cheese
• 4 oz cream cheese, softened
• 1 tsp garlic powder (for sauce)
• 1/2 tsp onion powder (for sauce)

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Instructions

1. Bring a large pot of salted water to a rolling boil. Cook the penne until just tender then drain and set aside. Reserve a half cup of pasta water.
2. In a bowl, toss the steak strips with 2 tbsp olive oil, 1 tbsp Cajun seasoning, 1 tsp garlic powder, 1 tsp smoked paprika, 1/2 tsp salt, and 1/2 tsp black pepper until evenly coated.
3. Heat a large skillet over medium-high heat. Add 2 tbsp butter and let it foam. Add the steak strips in a single layer and sear for 2 to 3 minutes per side until browned but still slightly pink inside. Remove steak to a plate.
4. Add the minced garlic to the pan and cook for about 30 seconds until fragrant, scraping up any browned bits. Remove the garlic with the steak so it does not burn.
5. In the same skillet, melt another tablespoon of butter. Sprinkle in 1 tbsp flour and whisk to form a roux; cook for 1 minute to eliminate raw flour taste.
6. Slowly whisk in 2 cups heavy cream and 1 cup whole milk until smooth. Bring to a gentle simmer and cook until the mixture thickens slightly, about 3 to 5 minutes.
7. Reduce heat to low and stir in 1.5 cups shredded mozzarella, 1 cup grated Parmesan, and 4 oz softened cream cheese. Stir continuously until the cheeses melt and the sauce becomes thick and glossy.
8. Season the sauce with 1 tsp garlic powder, 1/2 tsp onion powder, and additional salt and pepper to taste. If the sauce is too thick, loosen with a splash of reserved pasta water.
9. Add the cooked penne to the skillet and toss to coat evenly, letting the pasta absorb the sauce for a minute.
10. Top the sauced pasta with the seared Cajun steak. Gently toss to combine or layer the steak on top for a restaurant-style presentation.
11. Garnish with chopped parsley, extra grated cheese, and red pepper flakes if you like a little more heat.

Notes

For a lighter version, use half-and-half instead of heavy cream and reduce the cheese slightly. Ensure to slice steak across the grain for tenderness.

Nutrition

• Serving Size: 1 serving
• Calories: 650
• Sugar: 3g
• Sodium: 800mg
• Fat: 30g
• Saturated Fat: 15g
• Unsaturated Fat: 10g
• Trans Fat: 0g
• Carbohydrates: 60g
• Fiber: 3g
• Protein: 40g
• Cholesterol: 110mg