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Home Recipes Whole 30 Easy Spaghetti Squash Pesto Dinner Recipe

Easy Spaghetti Squash Pesto Dinner Recipe

1 hour 10 minutes
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By: Britni Vigil
7/30/2020Updated: 2/23/2022
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A bowl of spaghetti squash with pesto and text for Pinterest
A bowl of spaghetti squash with pesto and text for Pinterest

This spaghetti squash pesto combines roasted spaghetti squash with an easy spinach pesto and a fried egg for one easy and delicious dinner. It’s a great alternative to a normal pasta dish without sacrificing flavor!

A white bowl with spaghetti squash pesto and a fried egg on top

Whole 30 Pasta Alternative

I discovered spaghetti squash a few years ago when we were doing Whole 30. I was craving pasta and hated zoodles.

My husband suggested spaghetti squash and pesto as an alternative and you know what, I didn’t just like it – I loved it. It’s not the same as pasta, but it’s a really good option when you want pasta but something a bit less carb-filled.

You’ll love this spaghetti squash pesto recipe because it’s super easy to make, it’s inexpensive (great for budget dinners!), and the actual time you’re actively cooking is like five minutes tops.

Plus the combination of the squash, pesto, and fried egg on top is well amazing.

Ingredients

Ingredients needed to make spaghetti squash pesto dinner

Ingredient Notes

This is more about the method of cooking than the measurements!

  • Walnuts – this pesto is written using walnuts but you could easily substitute them with another nut like pine nuts. Whatever nuts you are using, toast them quickly on the stove before adding them to the recipe.
  • Parmesan – grated parmesan is best but if you only have shredded, that’ll work too. Skip the parmesan to make this Whole 30 friendly.
  • Fried egg – this is optional but adds a ton to the recipe. We like frying an egg or two and adding on top – the yolk complements the pesto and squash well!

Instructions

The first thing you need to do is cook the spaghetti squash. There are a number of ways you can do this. I’ve included instructions below for roasting the spaghetti squash in the oven, but you could also use an Instant Pot and these instructions to make it quicker.

1 – Roast the spaghetti squash

Preheat the oven to 350 degrees. While it’s preheating, put the whole spaghetti squash on a baking sheet lined with parchment paper.

Roast the spaghetti squash in the oven for 45-60 minutes depending on the size of the squash (larger ones will take longer).

Once squash is roasted, allow it to cool for 20-30 minutes or until cool enough to handle with your hands.

Once it’s cooled down a bit, cut the squash in half lengthwise and scoop out the seeds with a spoon.

Then use a fork to scrape out the flesh of the squash – this will create stringy strands of spaghetti squash that looks kind of like spaghetti (hence the name spaghetti squash).

Fork scraping insides of spaghetti squash

2 – Make the pesto

While the spaghetti squash is cooling, make your pesto by lightly pulsing the baby spinach, lemon juice, basil, salt, and toasted walnuts in a food processor.

Turn the food processor on and while it’s running, add in the olive oil until it reaches a good consistency.

Remove from the food processor and add the grated parmesan and any additional salt to taste. If you want this to be a Whole 30 recipe, skip the parmesan.

Spinach and basil in a food processor

3 – Combine and enjoy

If you’re planning to add fried eggs on top, this is the time to do it.

While the eggs are cooking, add your desired amount of pesto to indiviual bowls of spaghetti squash and serve with some extra toasted nuts, parmesan cheese, and a fried egg (or two) on top.

I recommend doing individual bowls because it’s better to store any leftover spaghetti squash and leftover pesto separate rather than combined.

A white bowl with spaghetti squash pesto and a fried egg

How-To Video

Want to see how quickly this comes together? The video below shows making the spaghetti squash in the Instant Pot but roasting it is just as easy!

Expert Tips

Double the pesto and refrigerate it to use for another meal, another day. We love adding the pesto to chicken paninis, English muffin pizzas, or pesto roll-ups.

Add lemon zest along with the lemon juice if you want the pesto a bit brighter. But if you don’t have it, it’ll still be yummy with just lemon juice!

Toast the walnuts (or other kind of nuts) by putting them in a dry pan on the stove. Heat over medium-heat for a few minutes, watching closely because nuts can go from almost toasted to burnt in seconds. Remove from the pan (not just the heat) as soon as they’re done.

Roast two spaghetti squashes at once and use the extras another day with this sweet spaghetti sauce or this Cincinnati chili recipe.

Add some chopped up bacon for a little salt and added texture.

Recipe FAQs

Do I need to cook the spaghetti squash after roasting?

No, the spaghetti squash will be completely cooked and ready to eat after roasting. If you want to brown it up a bit and add a little texture, you can cook it on the stove with a bit of oil.

What goes well with spaghetti squash?

Combine the spaghetti squash with the pesto, a little chopped bacon, and the fried egg for a complete meal.

How should I store this?

Store the spaghetti squash and pesto separately in the fridge, in airtight containers for up to five days.

A fork full of spaghetti squash pesto with a fried egg in a bowl

More Whole 30 Recipes

  • Almond chicken
  • Cauliflower puree
  • Whole 30 zuppa toscana
  • Taco meat
  • Greek lemon chicken
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Print Rate
5 from 3 votes

Spaghetti Squash Pesto

This spaghetti squash pesto combines roasted spaghetti squash with an easy spinach pesto and a fried egg for one easy and delicious dinner. It’s a great alternative to a normal pasta dish without sacrificing flavor!
A white bowl with spaghetti squash pesto and a fried egg
Prevent your screen from going dark
Cook: 50 minutes
Total: 1 hour 10 minutes
Serves4 servings

Ingredients

  • 1 large spaghetti squash
  • 2 cups baby spinach leaves
  • 1/2 cup fresh basil
  • 1/4 cup walnuts toasted
  • 2 TBS lemon juice
  • 1/3 cup olive oil
  • 1/2 tsp salt
  • 1/3 cup grated parmesan
  • 4 eggs optional

Instructions

For Squash

  • Preheat oven to 350 degrees
  • Put your spaghetti squash on a baking sheet lined with parchment paper. Roast in the oven for 45-60 minutes depending on the size of the squash.
  • Once squash is roasted, allow to cool for 20-30 minutes or until cool enough to handle. While squash is cooling, make your pesto.
  • Cut the squash in half lengthwise then scoop out the seeds with a spoon.
  • Use a fork to scrape out the flesh of the squash to create stringy strands of squash. Put squash in a large bowl and set aside.

For Pesto

  • Add spinach, basil, salt, toasted walnuts, and lemon juice to the food processor and pulse lightly.
  • With the food processor running, add olive oil and let it mix until you reach your desired consistency.
  • Remove pesto from food processor and stir in grated parmesan cheese and additional salt to taste (if necessary).
  • Add a tablespoon of pesto to a bowl of spaghetti squash and mix. Top with parmesan cheese and a fried egg or two.

Tips & Notes:

Double the pesto and refrigerate it to use for another meal, another day. We love adding the pesto to chicken paninis, English muffin pizzas, or pesto roll-ups.
Add lemon zest along with the lemon juice if you want the pesto a bit brighter. But if you don’t have it, it’ll still be yummy with just lemon juice!
Toast the walnuts (or other kind of nuts) by putting them in a dry pan on the stove. Heat over medium-heat for a few minutes, watching closely because nuts can go from almost toasted to burnt in seconds. Remove from the pan (not just the heat) as soon as they’re done.

Nutrition Info

Calories: 323kcal, Carbohydrates: 19g, Protein: 6g, Fat: 27g, Saturated Fat: 5g, Cholesterol: 7mg, Sodium: 472mg, Potassium: 396mg, Fiber: 4g, Sugar: 7g, Vitamin A: 1927IU, Vitamin C: 13mg, Calcium: 175mg, Iron: 2mg

Nutritional Disclaimer

Author: Britni Vigil
Course:Dinner
Cuisine:American
Did You Make This?Tag @PlayPartyPlan on Facebook and Instagram and hashtag it #playpartyplan so I can see your creations!
A bowl of spaghetti squash with pesto and text for Pinterest

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  1. Jennifer Farley says

    Posted on 10/3 at 3:09 pm

    5 stars
    This has so many incredible flavors! The bacon really kicks it up a notch.

    Reply
    • Britni says

      Posted on 10/4 at 4:24 pm

      Thanks so much! Glad you like it.

      Reply
  2. Linda says

    Posted on 10/3 at 2:06 pm

    5 stars
    I love spaghetti squash in place of pasta. It’s a lot less heavy than pasta and so much better for you. I’ve never seen it with an egg served on top but it looks like it just might be the perfect topping. I’ve got a bunch of basil pesto that needed just this recipe.

    Reply
    • Britni says

      Posted on 10/4 at 4:26 pm

      Hope you liked it. Thanks for your interest and kind words.

      Reply
  3. Melissa @ My Recent Favorite Books says

    Posted on 12/17 at 10:48 pm

    This looks so good!! =)
    Stopping by from the PINcentive Blog Hop!
    Im a Pinterest and Bloglovin follower.

    Reply
  4. LazyHippieMama says

    Posted on 12/15 at 11:37 pm

    This looks fabulous! My kids resist my attempts at spaghetti squash so far but maybe it’s time to try again! 🙂

    Reply
  5. Ken Goh says

    Posted on 12/15 at 1:41 pm

    Britni, is it a spaghetti or a squash? We have a type of squash which we called shark fin melon and I never know that it exist elsewhere. If we are talking the same type of fruit, we used this to cook soup and it is really delicious. You make want to buy this vegetables and prepare it your way. Thanks for sharing.

    Reply
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