Spaghetti Squash, Brussels Sprouts and Crispy Shallots

Spaghetti squash, Brussels sprouts, and crispy shallots is an easy throw-together side dish loaded with savory fall flavors. It’s a light, veggie-heavy recipe that squash lovers will keep coming back to.

Spaghetti squash, Brussels sprouts, and crispy shallots side dish in a bowl.

Wondering what to do with your spaghetti squash? I’ve got an idea you’ll love. Roast it, then toss it together with sauteed Brussels sprouts, crispy shallots and a few other simple ingredients for a wow-worthy side dish.

You’ve seen me combine spaghetti squash with greens and simple flavor before, in my spaghetti squash with broccoli and truffle oil combo. But for this new recipe, we’re amping up the garlicky, oniony, crispy flavor. Truth be told, the shallots really are the star ingredient here. They’re delicate, yet flavorful, and instead of being piled in a mound on top, as you’d do for a green bean casserole recipe, we’re mixing them in for added flavor in every bite (and yes, you will be going back for seconds).

Just 4 Ingredients Needed

Aside from olive oil and a dash of salt and pepper, this side dish comes together with just 4 ingredients. Add these to your weekend grocery list.

  • Spaghetti Squash: When roasted, it creates deliciously tender strands. Try to find one under four pounds – so it’s not overpowering the entire dish.
  • Shallots: Thinly sliced shallots are quicky crisped up and turned golden.
  • Brussels Sprouts: Shaved Brussels sprouts are always a great way to incorporate more veggies into your fall and winter meals.
  • Garlic: Because what savory dish doesn’t need garlic?

Ingredients for Spaghetti squash side dish on a table.

How To Make This Spaghetti Squash Side Dish

Roasting the spaghetti squash is going to take the longest – so it’s best to prep that first. For a more detailed outline, check out how to cook spaghetti squash perfectly. Otherwise, continue the steps below.

  • Roast the spaghetti squash. Slice, scoop, oil up the inside, and sprinkle salt and pepper. Then roast for 40-45 minutes.
  • Sauté the shallots. Once you’ve reached the 30 minute mark for roasting your squash, it’s time to make the crispy shallots. Sauté the sliced shallots in a large pan with oil for about 8 minutes – until they’re perfectly crisp. Then drain them on a paper towel.
  • Sauté the Brussels sprouts. With a bit of oil and garlic, sauté the sprouts for 4-5 minutes.
  • Mix it all together! Remove the squash from the oven and scrape the flesh into a bowl using a fork. Then mix in the crispy shallots, Brussels sprouts, and season with salt and pepper. You’re ready to serve!

Process of cooking spaghetti squash and Brussels sprouts side dish

Ways To Serve This Spaghetti Squash Recipe

Storing And Reheating

  • To store: This can be stored in an airtight container in the fridge for up to 4 days.
  • To reheat: Simply pop this in the microwave for about 1 minute or so.

A bowl of spaghetti squash, Brussels sprouts, and crispy shallots

More Winter Squash Recipes

These beauties can transform into a wide range of sweet or savory recipes. Here’s a few butternut squash and spaghetti squash recipes to inspire you.

Spaghetti squash, Brussels Sprouts, and Crispy Shallots in a bowl on a table.

Spaghetti Squash, Brussels Sprouts and Crispy Shallots

5 from 6 votes
Prep Time: 15 mins
Cook Time: 45 mins
Total Time: 1 hr
Servings: 4 servings
Author: Lisa Bryan
Spaghetti squash, Brussels sprouts, and crispy shallots are tossed together for an easy and flavorful side dish!


  • 1 3 1/2 - 4 pound spaghetti squash
  • 3 tablespoons olive oil (divided)
  • 2 large shallots, thinly sliced
  • 1 pound Brussels sprouts, shaved or thinly sliced
  • 3 garlic cloves, minced
  • salt and pepper, to taste


  • Preheat your oven to 400F/200C. Slice the spaghetti squash in half and scoop out the seeds. Coat the inside with a little olive oil and salt and pepper, then bake for 40-50 minutes.
    Spaghetti squash being salted and oiled for a side dish.
  • When the spaghetti squash has cooked for about 30 minutes, heat 2 tablespoons of olive oil on medium heat in a large pan. Add the shallots and cook, stirring frequently, for about 8 minutes or until lightly golden and crispy.
    Sauteing crispy shallots in a pan.
  • Use a slotted spoon to remove the crispy shallots to a paper towel to drain.
    Brussels sprouts in a pan next to crispy shallots
  • Add the brussels sprouts and minced garlic to the same pan and saute for 4-5 minutes. You may need to add another splash of oil as well.
  • When the spaghetti squash is done, remove it from the oven and use a fork to scrape out the flesh into a bowl. Add the sauteed Brussels sprouts and crispy shallots to the bowl, and season with additional salt and pepper.
    Spaghetti squash, Brussels sprouts, and crispy shallots in a large bowl.
  • Stir all of the ingredients together and serve!
    Spaghetti Squash, Brussels sprouts, and crispy shallots being mixed in a bowl.

Lisa's Tips

  • To store: This can be stored in an airtight container in the fridge for up to 4 days.
  • To reheat: Simply pop this in the microwave for about 1 minute or so.


Calories: 154kcal, Carbohydrates: 13g, Protein: 4g, Fat: 11g, Saturated Fat: 2g, Sodium: 30mg, Potassium: 492mg, Fiber: 5g, Sugar: 4g, Vitamin A: 855IU, Vitamin C: 98mg, Calcium: 56mg, Iron: 2mg
Course: Side Dish
Cuisine: American
Keyword: Spaghetti Squash Recipe, spaghetti squash side dish, Spaghetti squash, brussels sprouts, and crispy shallots
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17 comments on “Spaghetti Squash, Brussels Sprouts and Crispy Shallots”

  1. Great recipe, thank you! We used it as a main dish twice: once plain and the other with your marinara sauce on top – just like “pasta”. Top that with vegan parmesan and it was simply heavenly. :) 5 stars

  2. Delicious, filling and super easy to prepare.5 stars

  3. Are the nutrition facts stated per serving or for 4 servings?

  4. Hello Lisa,

    thank you for another great way to use in season vegetables. Can yellow onions be swapped for the shallots as I have a lot of yellow onions at home and no shallots. Thank you.

  5. Totally making this…but I just might have to add some bacon or guanciale. 

  6. Two of my favorite fall vegetables colliding! Love the simplicity of this dish – such a great side for fall meals!5 stars

  7. Ahhh I’ve always wanted to try spaghetti squash but wasn’t sure what to do with it – now I’ll be giving it a go… love sprouts and crispy shallots sound wonderful. Thanks!5 stars

  8. I love the flavours in this mixed veggie side dish. I always tend to prepare and serve the vegetables separately but this sounds like a much better and tastier way!5 stars

  9. This was such a fun side dish to add to our dinner table today!! It turned out to be absolutely delicious and was so easy to make. My kids gobbled it up too!5 stars