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Keto Spaghetti Squash Carbonara

Shruthi
Tender roasted spaghetti squash provides naturally noodle-like strands.Crispy bacon adds salty, smoky, savory flavor to every bite.Egg and Parmesan combine into a silky carbonara-style coating.Freshly cracked black pepper provides the classic peppery finish.Garlic adds an optional layer of aromatic flavor.This comforting low-carb dinner is quick, satisfying, and easy to customize.
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Course Main Course
Cuisine American, Italian-Inspired
Servings 4
Calories 480 kcal

Ingredients
  

For the Spaghetti Squash

  • 1 medium spaghetti squash, approximately 3 pounds
  • 1 tablespoon olive oil
  • ½ teaspoon salt
  • ¼ teaspoon black pepper

For the Carbonara

  • 6 ounces bacon or pancetta, diced
  • 3 large eggs
  • 2 large egg yolks
  • ¾ cup freshly grated Parmesan cheese
  • 2 cloves garlic, finely minced, optional
  • 1 teaspoon freshly ground black pepper
  • ¼ teaspoon salt, or to taste

For Finishing

  • Extra Parmesan cheese
  • Freshly cracked black pepper
  • Fresh parsley
  • Optional red pepper flakes

Instructions
 

Roast the Spaghetti Squash

  • Preheat the oven to 400°F (200°C).
    Carefully cut the spaghetti squash in half lengthwise.
    Scoop out the seeds and stringy center using a spoon.
    Brush the cut sides lightly with olive oil and season with salt and black pepper.
    Place the squash cut-side down on a baking sheet.
    Roast for approximately 35–45 minutes, depending on the size of the squash, until the flesh is tender and easily separates into strands.
    Allow it to cool slightly.

Create the Squash Strands

  • Use a fork to gently scrape the squash flesh lengthwise, separating it into spaghetti-like strands.
    If the squash is particularly moist, allow the strands to drain in a colander for several minutes.
    Set aside.

Prepare the Carbonara Mixture

  • While the squash is roasting, whisk the eggs and egg yolks together in a medium bowl.
    Add the grated Parmesan cheese and freshly ground black pepper.
    Whisk until the mixture becomes thick and well combined.
    Set aside.

Cook the Bacon

  • Place a large skillet over medium heat.
    Add the diced bacon or pancetta.
    Cook for approximately 5–7 minutes, stirring occasionally, until the meat is crispy and the fat has rendered.
    Transfer some of the crispy bacon to a plate if you want to reserve it for garnishing.
    Leave approximately 1–2 tablespoons of rendered fat in the skillet.

Add the Garlic

  • If using garlic, reduce the heat to medium-low.
    Add the minced garlic to the bacon fat.
    Cook for approximately 30 seconds, stirring constantly, until fragrant.
    Be careful not to burn the garlic.

Add the Spaghetti Squash

  • Add the cooked spaghetti squash strands to the skillet.
    Toss gently with the bacon and garlic.
    Heat for approximately 1–2 minutes, until the squash is hot.
    Remove the skillet from the heat.

Adjust the Consistency

  • If the sauce seems too thick, add 1–2 tablespoons of warm water or unsalted broth and toss again.
    The sauce should coat the squash strands rather than form a thick puddle at the bottom.

Add the Bacon

  • Return the crispy bacon to the skillet.
    Toss gently to distribute it throughout the carbonara.
    Taste and adjust the black pepper and salt if necessary.

Garnish and Serve

  • Transfer the carbonara to serving bowls.
    Top with extra Parmesan, freshly cracked black pepper, crispy bacon, and fresh parsley.
    Serve immediately while warm.

Notes

  • Egg temperature: Room-temperature eggs blend more easily with the hot squash.
  • Fresh Parmesan: Freshly grated Parmesan melts much better than pre-shredded cheese.
  • Don't boil the eggs: Remove the skillet from direct heat before adding the egg mixture.
  • Bacon or pancetta: Either works well. Pancetta provides a more traditional Italian-style flavor.
  • Salt carefully: Bacon and Parmesan are naturally salty, so additional salt may not be necessary.
  • Squash moisture: Excess moisture can dilute the carbonara, so drain very wet squash strands.
  • Traditional carbonara: Classic Roman carbonara traditionally uses guanciale and Pecorino Romano rather than bacon and Parmesan.
  • Serve immediately: Carbonara has the best texture when served right after preparation.
Keyword Bacon Carbonara, Keto Dinner, Keto Spaghetti Squash Carbonara, Low Carb Carbonara, Spaghetti Squash Pasta, spaghetti squash recipe