Low Carb Spaghetti Squash Alfredo with Steak

Low Carb Spaghetti Squash Alfredo with Steak is cheesy alfredo stuffed spaghetti squash served with tender steak for a keto-friendly dinner. This healthier alternative to traditional alfredo pasta will take you back to your favorite restaurant while making it easier to stay on track for healthy low-carb eating.

If you are looking for more low carb dinner options then you have to try my Low-Carb Chicken Parmesan Stuffed Peppers, Grilled Zucchini and Squash, and my Low Carb Zucchini Lasagna next!

Low Carb Spaghetti Squash Alfredo with Steak is keto-friendly comfort food based on the popular pasta dish. Everyone loves alfredo pasta and this version makes it more accessible to those with dietary restrictions.

Jump to:

• What is spaghetti squash?
• Is Spaghetti Squash Alfredo with Steak Healthy?
• Low Carb Spaghetti Squash Alfredo with Steak Ingredients
• Check out the story for recipe details:
• How to Make Low Carb Spaghetti Squash Alfredo with Steak
• Can I make this ahead of time?
• Storing Leftover Low Carb Spaghetti Squash Alfredo with Steak
• 📖 Recipe

Baked spaghetti squash closely resembles angel hair pasta without the carbs, making it an ideal replacement for fettuccine pasta. It is so creamy and delicious that no one will miss the carbohydrates! Get ready to indulge with no guilt!

What is spaghetti squash?

Spaghetti squash is a winter vegetable that is commonly used by those on a keto diet. The squash is known for its yellowish flesh that closely resembles spaghetti. When the flesh of the squash is cooked, it shreds easily with a fork. It has a mild flavor which makes it the perfect pasta alternative.

Is Spaghetti Squash Alfredo with Steak Healthy?

Alredo sauce is not the healthiest thing in the world but when you swap out the pasta for a vegetable, it is definitely the healthier option!

Spaghetti squash is packed with vitamins and fiber so it is a sneaky way to get the kids (and adults) some extra nutrients. Steak has a lot of protein which means it takes less to fill you up. In addition, squash has fewer calories per serving than pasta.

Low Carb Spaghetti Squash Alfredo with Steak Ingredients

Spaghetti Squash

Low carb, nutrient rich spaghetti squash tranforms into noodle-like strands when after you roast it. Here is what you need for cooked spaghetti squash:

• Spaghetti squash
• Olive oil
• Salt
• Pepper

Alfredo Sauce

For a rich, creamy homemade alfredo sauce, gather the following:

• Olive oil
• Butter, unsalted
• Garlic, minced
• Onion, diced
• Flour
• Cream cheese
• Heavy cream, or milk
• Parmesan cheese, grated
• Seasoned salt
• Garlic powder
• Italian seasoning
• Black pepper

Check out the story for recipe details:

Steak

For added protein -and taste- I threw steak in the mix. A juicy ribeye steak pairs so well with alfredo sauce that it would feel like a crime if I excluded it! However, you can use whatever cut of steak that you prefer. Of course, chicken would be a tasty addition as well.

• Ribeye steak
• Steak seasoning
• Worcestershire sauce
• Butter, unsalted

Topping

Once the meal is just about done, add another layer of cheese on that Spaghetti Squash Alfredo and stick it in the broiler for a cheesy, bubbly finish!

• Mozzarella cheese
• Grated parmesan
• Basil, chopped (optional)

How to Make Low Carb Spaghetti Squash Alfredo with Steak

It may seem like a huge task to make this dish but once we break it down, it is easy to see how simply this meal comes together. Just follow these instructions.

Preparing the Spaghetti Squash

Firstly, preheat the oven to 400 degrees. Then, using a sharp knife, cut the spaghetti squash lengthwise, from stem to bottom.

Use a spoon to scoop out all of the seeds and membrane from the middle of each half of the squash.

Drizzle each half of the spaghetti squash with olive oil, and salt and pepper. Place it cut side down on a baking sheet. Use a fork to pierce the skin side about 10 times to allow it to steam while it bakes.

Place the squash in the oven and bake for 30 minutes, or until the spaghetti squash is fork-tender. Once it is done, remove it and set it aside.

Alfredo Sauce

While the spaghetti squash is cooking, start on the alfredo sauce.

Warm a skillet over medium heat. Then add the olive oil and butter into the skillet. Once the butter is melted, add in the garlic and minced onions. Sauté for 1-2 minutes.

Sprinkle in the flour and stir it around until it absorbs the oils. Next, place the cream cheese into the mixture and stir it around for about one minute so that it can begin to melt.

Gently pour in the heavy cream and stir it around until everything is incorporated. The sauce will be kind of chunky because of the garlic and onions.

Add the parmesan cheese, seasoned salt, garlic powder, Italian seasoning, and black pepper.

Stir the alfredo sauce and allow it to simmer on low for 5 minutes. Add more heavy cream or broth if a thinner consistency is desired.

Steak

Season the steak with steak seasoning and Worcestershire sauce. Ideally, the steak should marinate for at least one hour prior to cooking.

Heat up a cast-iron skillet over medium-high heat. Place the butter into the skillet and allow it to melt.

Once the butter is melted, place the steak directly into the skillet and press it down so that it can sear.

Sear the steak on each side for 5 minutes for a medium cook. Remove the steak from the skillet and allow it to rest for at least 7 minutes.

After the steak rests, slice it into thin strips.

Assemble the Low Carb Spaghetti Squash Afredo

Once the spaghetti squash is cool enough to handle. Use a fork to flesh out the strands of spaghetti. They should resemble noodles. Leave the shell of the squash in tact so that you can fill it.

Place the spaghetti squash in a large bowl. Pour the alfredo sauce over the squash and mix it in thoroughly.

Scoop the alfredo back into the shell of the spaghetti squash. Top with mozzarella cheese, and layer each half with the steak.

Place it back in the oven on the broil setting for 5 minutes, or until the cheese melts and bubbles. Keep a close eye on it so that it does not burn.

Finally, top with basil and parmesan cheese if desired.

Can I make this ahead of time?

You can definitely make Spaghetti Squash Alfredo ahead of time! I suggest prepaing the squash and steak prior if you need to save time. For the best results, alfredo should be made fresh. It only takes miniutes to prepare and it makes all the difference.

Storing Leftover Low Carb Spaghetti Squash Alfredo with Steak

Store leftovers in an airtight container and it will last up to 5 days in the fridge. When you are ready to reheat, just add it to a warm skillet and stir frequently. If you overheat leftover alfredo, it may separate so keep a close eye on it!

📖 Recipe