Steak & Spinach Alfredo Penne Skillet

If you’re craving a dinner that combines rich, creamy comfort with a hearty, savory protein, this Steak & Spinach Alfredo Penne Skillet is exactly what you need. It’s an indulgent yet simple one-pan meal that brings together tender strips of steak, fresh spinach, and a luscious Alfredo sauce all tossed with perfectly cooked penne pasta. Whether it’s a weeknight supper or a special weekend treat, this recipe promises satisfying flavors and minimal cleanup. Plus, it’s versatile enough to tweak based on what you have in your kitchen. Let’s dive into why this skillet pasta will become a staple in your recipe rotation.

Why You’ll Keep Making It

This Steak & Spinach Alfredo Penne Skillet checks all the boxes for an unforgettable meal. The steak adds a juicy, meaty element that feels indulgent but still straightforward. The creamy Alfredo sauce, made with heavy cream and Parmesan, creates a rich coating that perfectly clings to every bite of penne pasta. Fresh spinach adds a pop of color and subtle earthiness, balancing the richness while boosting the nutrition. You’ll appreciate how everything cooks in one skillet, which means fewer dishes and more time enjoying your meal. The recipe adapts beautifully for your spice preferences, and the red pepper flakes give it a gentle kick if you want. It’s the kind of recipe that feels gourmet but comes together in under 40 minutes.

Gather These Ingredients

• 8 oz penne pasta – the ideal shape to catch the creamy sauce in every bite.
• 1 lb steak (sirloin or ribeye), thinly sliced into strips – choose a tender cut for best results.
• 2 cups fresh spinach, chopped – adds freshness and nutrients.
• 2 cups heavy cream – the base for that dreamy Alfredo sauce.
• 1 cup grated Parmesan cheese – sharp and salty, the key to authentic flavor.
• 2 cloves garlic, minced – for aromatic depth.
• 3 tbsp olive oil – for searing the steak and sautéing the garlic.
• Salt and pepper, to taste – seasoning is everything.
• 1/2 tsp red pepper flakes (optional) – adds a gentle heat.

Gear Checklist

• Large skillet or sauté pan: Preferably with a lid, to cook everything evenly.
• Colander: For draining the pasta.
• Sharp knife: To slice the steak and chop spinach.
• Wooden spoon or spatula: For stirring the sauce and pasta.
• Measuring cups and spoons: To ensure ingredient accuracy.

Build Steak & Spinach Alfredo Penne Skillet Step by Step

Step 1: Cook the penne pasta

Bring a large pot of salted water to a boil. Add the penne pasta and cook according to the package instructions until al dente, usually about 10-12 minutes. Drain the pasta and set aside, reserving a small cup of pasta water for later.

Step 2: Sear the steak strips

Heat 2 tablespoons of olive oil in your large skillet over medium-high heat. Season the steak strips generously with salt and pepper. Once the oil is shimmering, add the steak strips in a single layer. Sear for about 2-3 minutes per side until browned but still juicy inside. Remove the steak from the skillet and set aside.

Step 3: Sauté garlic and wilt spinach

Reduce the heat to medium. Add the remaining tablespoon of olive oil to the skillet. Toss in the minced garlic and sauté for about 30 seconds until fragrant. Add the chopped spinach and cook until wilted, about 2 minutes, stirring frequently.

Step 4: Make the Alfredo sauce

Pour the heavy cream into the skillet with the garlic and spinach. Stir well to combine. Bring the cream to a gentle simmer and cook for 3-4 minutes to slightly thicken. Then stir in the grated Parmesan cheese until melted and smooth. Season with salt, pepper, and red pepper flakes if using.

Step 5: Combine pasta, steak, and sauce

Add the cooked penne pasta and seared steak strips back into the skillet with the sauce. Toss everything gently to coat the pasta and steak evenly. If the sauce feels too thick, add a splash of the reserved pasta water until you reach your desired consistency.

Step 6: Serve and enjoy

Once everything is heated through and coated in that creamy sauce, remove the skillet from heat. Serve immediately, garnished with extra Parmesan or fresh cracked pepper if desired. Enjoy the rich flavors and comforting texture of this all-in-one skillet meal.

What to Use Instead

• Steak: Substitute with chicken breast or thighs for a leaner protein option.
• Heavy cream: Use full-fat coconut milk or cashew cream for a dairy-free alternative.
• Parmesan cheese: Swap with nutritional yeast or vegan Parmesan for a plant-based twist.
• Penne pasta: Use fettuccine, rigatoni, or even gluten-free pasta shapes.
• Spinach: Try kale or Swiss chard if you want a heartier green.

What Could Go Wrong

• Steak overcooked or tough: To avoid this, slice the steak thinly and sear quickly over high heat.
• Sauce too thin or too thick: Adjust with reserved pasta water for thinner sauce or cook a bit longer to thicken.
• Garlic burning: Garlic cooks fast; sauté briefly over medium heat and watch closely.
• Pasta mushy: Drain pasta al dente to maintain texture once combined with sauce.

Best Ways to Store

Store any leftovers in an airtight container in the refrigerator for up to 3 days. When reheating, add a splash of milk or cream to loosen the sauce and reheat gently on the stovetop or in the microwave to keep the pasta creamy and prevent drying out. This skillet pasta also freezes well; just thaw overnight in the fridge before reheating.

Ask the Chef

Can I use a different cut of steak for this recipe?

Absolutely! Sirloin and ribeye are great for their tenderness and flavor, but you can also use flank steak or skirt steak. Just be sure to slice the steak thinly against the grain to keep it tender.

How can I make this recipe lighter?

Try swapping heavy cream for half-and-half or a mixture of milk and Greek yogurt to reduce calories. You might also enjoy a Lighter Cheesy Pasta Bake for a different take on creamy pasta dishes.

Can I add other vegetables to this skillet?

Yes! Mushrooms, bell peppers, or sun-dried tomatoes would add delicious layers. If you like stuffed veggies, you might also enjoy Spinach Dip Stuffed Mushrooms as a tasty side.

What if I don’t have Parmesan cheese on hand?

Grated Pecorino Romano or Asiago can be excellent substitutes. If you’re avoiding dairy, nutritional yeast offers a cheesy flavor that works well in Alfredo-style sauces.

Because You Liked This

• Spinach Dip Stuffed Mushrooms – perfect as a flavorful appetizer to complement your meal.
• Lighter Cheesy Pasta Bake – a delicious, lower-calorie pasta dish you’ll want to make again and again.

That’s a Wrap

This Steak & Spinach Alfredo Penne Skillet brings together everything you love about hearty, creamy pasta dishes with the satisfying bite of tender steak and fresh greens. It’s a straightforward recipe that feels indulgent without being complicated, making it a perfect go-to for busy weeknights or weekend dinners. The combination of flavors and textures is truly irresistible, and the one-pan method means less time cleaning up and more time enjoying the meal with your loved ones. Whether you stick to the classic version or customize it with your favorite swaps, this skillet pasta is sure to become a beloved favorite in your kitchen. So fire up your skillet, gather your ingredients, and get ready to savor every creamy, flavorful bite.

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