Oh, friends—thank you so much for being here today! 💛 This one’s for my fellow comfort food lovers, because we’re taking two classics—steakhouse-style beef and creamy Alfredo pasta—and bringing them together in one luxurious skillet meal.
This Steak Alfredo Spaghetti with Creamy Parmesan and Roasted Red Peppers is the definition of indulgent simplicity. Think juicy, pan-seared steak bites tossed with silky spaghetti and sweet roasted red peppers in a rich, garlicky Parmesan Alfredo sauce. It’s restaurant-worthy flavor, made right at home in just 30 minutes!
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Why You’ll Love This Steak Alfredo
This dish is all about bold flavors, creamy textures, and total comfort. The seared steak adds hearty depth, the Alfredo sauce is silky smooth, and the roasted red peppers bring a subtle sweetness that ties everything together beautifully.
Reasons to Love It
- 30-minute skillet meal: Perfect for busy nights that still deserve something special.
- Rich and creamy: A velvety Parmesan sauce coats every strand of pasta.
- Restaurant-style flavor: Steakhouse indulgence meets cozy home cooking.
- Versatile: Swap the steak for chicken, shrimp, or even mushrooms.
What Does It Taste Like?
Every bite bursts with creamy, garlicky goodness balanced by savory steak and sweet, smoky roasted red peppers. The Parmesan gives it that salty, cheesy depth, and a sprinkle of Italian seasoning brings it all home. It’s like your favorite Alfredo pasta—but leveled up with juicy steak and a touch of gourmet flair.
Ingredients You’ll Need
- 12 oz spaghetti
- 1 lb sirloin or ribeye steak, cut into bite-sized pieces
- Salt & black pepper, to taste
- 1 tsp garlic powder
- 2 tbsp olive oil
- 4 tbsp unsalted butter
- 3 cloves garlic, minced
- 1 cup roasted red peppers, sliced
- 1 cup heavy cream
- ½ cup grated Parmesan cheese
- ½ tsp Italian seasoning
- ½ tsp red pepper flakes (optional, for a little heat)
- 1 tbsp fresh parsley, chopped (for garnish)
Tools You’ll Need
- Large skillet or sauté pan
- Pot for boiling pasta
- Tongs or spatula
- Knife and cutting board
- Whisk or wooden spoon
Ingredient Additions & Substitutions
- Pasta: Fettuccine, linguine, or penne all work well.
- Cheese: Swap Parmesan for Pecorino Romano for extra sharpness.
- Protein: Substitute chicken, shrimp, or tofu for the steak.
- Vegetables: Add spinach, mushrooms, or sun-dried tomatoes for extra flavor.
- Lighter version: Use half-and-half instead of heavy cream (sauce will be thinner).
How to Make Steak Alfredo Spaghetti
Step 1: Cook the Spaghetti
Boil spaghetti in salted water until al dente. Drain and set aside, reserving ½ cup of pasta water for later.
Step 2: Sear the Steak Bites
Season steak with salt, black pepper, and garlic powder.
Heat olive oil in a large skillet over medium-high heat.
Add steak bites in a single layer and sear for 1–2 minutes per side, until browned and cooked to your liking.
Remove from skillet and set aside.
Step 3: Make the Creamy Alfredo Sauce
In the same skillet, melt butter over medium heat. Add minced garlic and sauté for 30 seconds until fragrant.
Pour in heavy cream, then whisk in Parmesan cheese, Italian seasoning, and red pepper flakes (if using).
Simmer for 2–3 minutes until smooth and creamy.
Step 4: Add Roasted Red Peppers & Combine Everything
Stir in roasted red peppers. Add the cooked spaghetti and seared steak back into the skillet.
Toss everything together, adding a splash of reserved pasta water if needed to loosen the sauce and make it ultra creamy.
Step 5: Garnish & Serve
Sprinkle with chopped parsley and extra Parmesan cheese.
Serve hot, right from the skillet, and watch it disappear! 🍝💖
What to Serve With Steak Alfredo
This hearty pasta dish pairs beautifully with:
- Garlic bread or buttery breadsticks 🥖
- Caesar salad or a crisp green salad
- Grilled asparagus or roasted broccoli
- A glass of red wine or sparkling lemonade for balance
Tips for Perfect Steak Alfredo
- Use quality steak: Ribeye gives the most flavor; sirloin is leaner and cooks fast.
- Don’t overcook the steak: It’ll continue to cook a little in the sauce.
- Whisk constantly: To keep the Alfredo sauce smooth and lump-free.
- Reserve pasta water: It’s the secret to silky, restaurant-style sauce!
- Serve immediately: Alfredo sauce thickens as it cools.
Storage Instructions
- Refrigerator: Store leftovers in an airtight container for up to 3 days.
- Reheat: Warm gently on the stovetop over low heat with a splash of milk or cream to loosen the sauce.
- Freezer: Not recommended—cream sauces can separate when frozen.
General Information
Prep Time: 10 minutes
Cook Time: 20 minutes
Total Time: 30 minutes
Servings: 4
Calories: ~640 kcal per serving
Frequently Asked Questions
Q: Can I use jarred Alfredo sauce?
Yes! If you’re short on time, use 1½ cups of your favorite store-bought Alfredo sauce and stir in roasted red peppers for that homemade touch.
Q: Can I make it spicy?
Definitely! Add more red pepper flakes or even a splash of hot sauce for an extra kick.
Q: Can I make this gluten-free?
Just use your favorite gluten-free pasta—it’s just as delicious.
Q: What kind of roasted red peppers should I use?
Jarred roasted red peppers work great here—just drain them well before slicing.
Conclusion
And there you have it—Steak Alfredo Spaghetti with Creamy Parmesan and Roasted Red Peppers, the perfect marriage of steakhouse indulgence and creamy pasta comfort. 🍝🥩✨ Every forkful is rich, flavorful, and downright irresistible.
Whether you’re cooking for a special dinner or treating yourself to something decadent, this easy skillet meal brings a touch of luxury to your table in just 30 minutes.
If you make this recipe, I’d love to see your masterpiece!
📸 Tag your photos on Pinterest or Instagram, and don’t forget to leave a comment below—your kitchen adventures always make my day!
Nutritional Information (Approx. per serving)
- Calories: 640 kcal
- Fat: 38 g
- Carbohydrates: 43 g
- Protein: 33 g
- Sodium: 550 mg
More Creamy Pasta Favorites You’ll Love
- 🍗 Creamy Tuscan Chicken Pasta – sun-dried tomatoes and spinach in a dreamy sauce.
- 🍤 Garlic Butter Shrimp Alfredo – fast, elegant, and full of flavor.
- 🍝 Cajun Steak Fettuccine Alfredo – spicy, smoky, and perfectly creamy.
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