Easy, comforting Spaghetti Squash Bolognese made with straight-forward, simple ingredients. This gem of a dinner is perfect for meal prepping and also easy to throw together any night of the week.

This post is sponsored by Thrive® Culinary Algae Oil.

Spaghetti Squash Bolognese - an easy, nutritious low-carb, paleo weeknight meal | theroastedroot.net

You’re looking at one of my favorite dinner staples. This Spaghetti Squash Bolognese is my go-to when I’m craving something Italian-inspired – that tomato-y, herby, meaty, saucy, comforting essence that cannot be satisfied in any other way!

The best part? It’s so easy to make!

Not to mention, this meal is clean, nutritious, and happens to include heart-healthy ingredients, great overall for your body.

Spaghetti Squash Bolognese - an easy, nutritious low-carb, paleo weeknight meal | theroastedroot.net

I use Thrive Algae Oil to roast the spaghetti squash and to prepare the Bolognese sauce for this recipe. Keeping your heart in mind, algae oil is a great source of monounsaturated fats.

In fact, algae oil is higher in monounsaturated fat than any other oil and it contains the lowest percentage of saturated fat.

Thrive has a deliciously light, neutral taste that enhances your other ingredients, so you don’t need to compromise flavor for nutrition.

The smoke point of algae oil is up to 485 degrees F, which makes it ideal for this application.

We’re roasting a spaghetti squash at 415 degrees F and sautéing at a high temperature, which means using a high-temperature cooking oil is the wisest route to ensure the oil does not burn and become toxic.

Spaghetti Squash Bolognese - an easy, nutritious low-carb, paleo weeknight meal | theroastedroot.net

If you don’t keep algae oil in your cooking arsenal, no sweat. You can easily replace it with avocado oil or olive oil.

How to Make Spaghetti Squash Bolognese:

This simple recipe only requires two basic steps: roasting the spaghetti squash and preparing the Bolognese sauce.

If you’re a multi-tasker like me, you can prepare the meat sauce while the spaghetti squash is roasting. On the flip side, you can roast the spaghetti squash and/or make the sauce up to 5 days before serving.

Pro Tip: The Bolognese meat sauce becomes even more flavorful as it sits!

I’m willing to bet you already have most of the ingredients for this recipe in your pantry, making it an easy meal to whip up any night of the week!

Spaghetti Squash Bolognese - an easy, nutritious low-carb, paleo weeknight meal | theroastedroot.net

Recipe Adaptations:

  • Make the recipe Low-FODMAP by omitting the onion and garlic and adding 1 to 2 tablespoons of cider vinegar, mustard or lemon juice
  • Use avocado oil instead of algae oil.
  • Replace the ground beef with ground turkey, pork, or chicken.
  • For those of you who eat dairy, serve the meal with grated parmesan cheese.
  • Prefer gluten-free noodles over spaghetti squash? Go for it!

The way I see it, this spaghetti squash Bolognese is a great meal prep recipe.

Hint: the Bolognese sauce becomes even more flavorful the longer it sits in the refrigerator!), easy to make on any given weeknight, and is snazzy enough for date night.

Looking for a clean yet romantic dinner for Valentine’s Day? This fits the bill!

Spaghetti Squash Bolognese - an easy, nutritious low-carb, paleo weeknight meal | theroastedroot.net

Enjoy this heart-conscious meal!

More Healthy Spaghetti Squash Recipes:

My cookbook, Paleo Power Bowls, is now available! CLICK HERE to check it out. Thank you for your support!

If you make this recipe, please feel free to share a photo and tag @The.Roasted.Root on Instagram!

Spaghetti Squash Bolognese - an easy, nutritious low-carb, paleo weeknight meal | theroastedroot.net

Spaghetti Squash Bolognese

4.41 from 5 votes
Spaghetti Squash Bolognese - grain-free "pasta" with meat sauce for a low-carb, healthy keto dinner recipe
Prep Time 20 minutes
Cook Time 50 minutes
Total Time 1 hour 10 minutes
Servings: 4 to 6 Servings


For the Spaghetti Squash:



Roast the Spaghetti Squash:

  • Preheat the oven to 415 degrees F. Cut the tip and tail off the spaghetti squash and use a metal spoon to scoop out the seeds and innards.
  • Drizzle the flesh with algae oil and sprinkle with sea salt. Place squash on a baking sheet cut-side down, and roast 45 to 50 minutes, or until very tender. Remove from oven and allow squash to cool enough to handle.
  • Use a fork to release the spaghetti squash strands and transfer to 2 to 4 bowls.

Prepare the Bolognese:

  • While the squash is roasting, make the bolognese.
  • Heat the algae oil in a large skillet over medium heat. Add the onion and sauté, stirring occasionally, until onion is translucent, about 8 minutes. Add the garlic and herbs (oregano through cayenne) and continue sautéing another 3 minutes.
  • Scoot the onions off to the side and add the ground beef. Allow the beef to brown without touching it for 3 minutes. Flip and continue browning another 3 minutes. Use a spatula to chop up the meat and stir everything together. Don’t cook the meat all the way through just yet.
  • Add the sea salt, crushed tomatoes, tomato paste and pure maple syrup (if using) and stir well. Bring sauce to a full boil, then reduce to a simmer. Cook sauce at a gentle bubble, stirring occasionally for 30 minutes (up to 1 hour).
  • Taste sauce for flavor and add more sea salt to taste.
  • Serve over spaghetti squash with fresh basil.


*Roast 2 spaghetti squashes if you're serving more than 4 people.
**To make recipe Low-FODMAP, omit the onion and garlic and add 1 to 2 tablespoons of cider vinegar, lemon juice, or mustard.


Serving: 1of 4 · Calories: 399kcal · Carbohydrates: 27g · Protein: 25g · Fat: 23g · Fiber: 6g · Sugar: 13g
Author: Julia
Course: Main Dishes
Cuisine: American
Keyword: beef, gluten free, low-carb, meat sauce, paleo, primal, spaghetti squash bolognese, spaghetti squash recipes
Did You Make This Recipe?I want to see it! Tag @the.roasted.root on social media!
Spaghetti Squash Bolognese - low-carb "pasta" with meat sauce is a hearty, delicious paleo, keto, whole30 dinner recipe

Julia Mueller
Meet the Author

Julia Mueller

Julia Mueller is a recipe developer, cookbook author, and founder of The Roasted Root. She has authored three bestselling cookbooks, – Paleo Power Powers, Delicious Probiotic Drinks, and The Quintessential Kale Cookbook. Her recipes have been featured in several national publications such as BuzzFeed, Self, Tasty, Country Living, Brit.co, etc.

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Questions and Reviews

  1. Hi! Watched you kale and garlic with walnuts on the spaghetti squash video. Suggest you try collared greens. They actually have more nutrients than Kale, and a refreshing change of pace and taste with many recipes. Good for calcium and IRON which is so needed. Your recipe looks YUM will try it. And going for the bolognese tonight!

  2. I love bolognese and have just left out any pasta that my recipes have caled for but no need with your use of spaghetti squash, so thank you for this recipe and another way for me to enjoy bolognese

    1. So glad you like it, Sabrina! I love the combination of the bolognese sauce and spaghetti squash. So filling yet clean and healthful! 😀