Spaghetti squash and meatballs is such a wonderful low-carb comfort food that is ready in about 40 minutes.
And although not quite the same, it closely mimics the experience of eating the original dish.
When I started a low-carb diet, I immediately began to look for ways to recreate old favorites while keeping them low-carb.
I certainly knew I was going to have to find a replacement for pasta - one of my all-time favorite things to eat (and I know I'm not the only one!)
This tasty dish of spaghetti squash and meatballs is the ultimate keto and low-carb substitute for the beloved classic recipe.
I make it often because my kids really enjoy it, and my husband and I don't exactly suffer when we eat it either. It's true comfort food!
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Ingredients
You'll only need a few simple ingredients to make this tasty meal. The exact measurements are included in the recipe card below. Here's an overview of what you'll need:
Spaghetti squash: I use a small (2 lb.) spaghetti squash in this recipe.
Lean ground beef: I typically use an 85/15 mixture. I find that leaner than that is not as flavorful. Sometimes I use ground turkey and make turkey meatballs.
To season: Kosher salt, black pepper, garlic powder, onion powder, smoked paprika, and dried oregano.
Marinara sauce: I try to use a sugar-free brand such as Rao's.
Chopped parsley: Used mostly for garnish, although it does add a nice fresh layer of flavor.
Finely grated Parmesan: You can also use shredded parmesan if that's what you have on hand.
Instructions
Making spaghetti squash and meatballs is easy! Scroll down to the recipe card for detailed instructions. Here are the basic steps:
Microwave the squash. You start by cooking the squash in the microwave, so it's ready in just ten minutes. I use a small, 2 lb. spaghetti squash. It yields about 1 lb. (3 cups) of cooked strands.
Bake the meatballs. Quickly mix the ground beef with the seasonings and bake the meatballs in the oven. There's no need to add breadcrumbs to them - they come out juicy and delicious.
Heat the sauce. To save time and effort, I use marinara sauce from a jar. But I make sure it's a sauce with no added sugar. I heat the sauce on the stove and add the cooked meatballs to the sauce.
Finish the dish. Pour the sauce and the meatballs on top of the squash strands, garnish with parsley and parmesan, and serve!
Expert tip
It's best to mix the sauce into the squash strands at the very last minute, right before eating, to prevent the noodles from becoming soggy.
Frequently asked questions
Yes! This dish is surprisingly similar in its mouthfeel to eating the real thing, although it's not exactly the same, obviously.
The spaghetti squash strands are wonderful in giving you the feeling of eating spaghetti, so you won't miss the starch. Especially if you're used to keto and low-carb substitutions.
Yes. I like to use the microwave because it's fast and convenient. But as an alternative to using the microwave, you can bake the spaghetti squash in the oven instead.
I don't recommend that. It's too lean, in my opinion, and the meatballs will not be as juicy.
Variations
The best way to vary this recipe is to use different spices in the meatballs. Sometimes I make life truly easy and use a tablespoon of pizza seasoning (plus salt and pepper) instead of the other spices.
As mentioned above, you can also make this recipe with turkey meatballs.
Serving suggestions
This is a complete meal of meat and a vegetable so it doesn't really need any side dishes. But I often add a splash of color by serving it with a side of steamed broccoli.
Storing leftovers
You can keep the leftovers in the fridge, in a sealed container, for 3-4 days. While it's best to keep the squash separate from the sauce, if you already mixed them together, don't toss the leftovers! Soggy or not, they will still be delicious, gently heated in the microwave on 50% power.
Sometimes I intentionally make a little extra (keeping the squash and the meatballs separate in the fridge) and enjoy the leftovers the next day for lunch.
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Recipe Card
Spaghetti Squash and Meatballs
Ingredients
- 1 small spaghetti squash - (2 lb.)
- 1 lb. lean ground beef - (85/15)
- ½ teaspoon Diamond Crystal kosher salt
- ½ teaspoon black pepper
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon smoked paprika
- 1 teaspoon dried oregano
- 2 cups no-sugar-added marinara sauce
- ¼ cup chopped parsley
- ¼ cup grated Parmesan - (optional)
Instructions
- Preheat the oven to 400 degrees F. Line a rimmed baking sheet with high-heat-resistant parchment paper.
- Prepare the spaghetti squash: Pierce the squash in a few spots with a sharp knife. Place it on a microwave-safe plate and microwave it for 5 minutes; turn to the other side and microwave it for 5 more minutes, until soft to the touch (careful, the plate and the squash will be hot). Let it stand for 5 minutes to finish cooking and cool off a little. Using a sharp knife, cut the squash in half lengthwise. Allow it to cool for 5 minutes, until easier to handle. Scoop out the pulp and seeds from the center, then rake a fork back and forth to remove strands of the flesh onto a serving bowl. Set aside.
- Prepare the meatballs: In a medium bowl, mix together the beef with salt, pepper, garlic powder, onion powder, smoked paprika, and oregano. Form the mixture into 24 small meatballs. Place the meatballs on the prepared baking sheet. Bake them until they are cooked through, about 10 minutes.
- Heat the marinara sauce in a large saucepan over medium-low heat. When the meatballs are ready, transfer them to the warm sauce and continue to simmer for 5 more minutes.
- Pour the meatballs and sauce on top of the spaghetti squash strands, garnish with parsley and parmesan, and serve.
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Notes
Nutrition per Serving
Disclaimers
Cup measurements refer to the standard American cup, which is 240 milliliters. Most of my recipes are low-carb (or keto) and gluten-free, but some are not. Please verify that a recipe fits your needs before using it. Recommended and linked products are not guaranteed to be gluten-free. Nutrition info is approximate, and the carb count excludes non-nutritive sweeteners. Nutrition info may contain errors, so please verify it independently. Recipes may contain errors, so please use your common sense when following them. Please read these Terms of Use carefully before using any of my recipes.
Vered DeLeeuw, LL.M., CNC, has been following a low-carb real-food diet and blogging about it since 2011. She's a Certified Nutrition Coach (NASM-CNC), has taken courses at the Harvard School of Public Health, and has earned a Nutrition and Healthy Living Certificate from Cornell University. Her work has appeared in several major media outlets, including Healthline, HuffPost, Today, Women's Health, Shape, and Country Living. 
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