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4-Ingredient Spaghetti Squash Meatball Bake

This Spaghetti Squash Meatball Bake has only 4 ingredients! Enjoy a delicious Winter meal without all the fuss!

When Winter comes, I love buying all the produce that goes on sale.

Squash is a big one. Butternut squash, spaghetti squash… they’re all so good.

And I love finding new ways to use them, ways that fit my budget and still taste amazing.

Baked spaghetti squash on a baking sheet. Text says "4-ingredient spaghetti squash meatball bake"

This Spaghetti Squash Meatball Bake has only 4 ingredients. Yes, 4! Why buy a laundry list of ingredients when you can have an amazing dinner with just a few?

These have melty mozzarella cheese, a slightly sweet tomato sauce, and are full of fiber thanks to the squash!

I’ll definitely be adding this to my weekly meal plan more often!

Scroll to the bottom of the post to get to the recipe card. Or keep reading for extra tips and tricks!

Ingredients for spaghetti squash meatball bake, on a stovetop

Ingredients

  • Spaghetti squash: I bought 4 small ones, so they’d be individual-sized.
  • Frozen meatballs: These are definitely easier than making homemade!
  • Spaghetti sauce: I just used a store brand, but use your favorite.
  • Shredded mozzarella cheese: Mozzarella goes well with any kind of pasta-style dish!
Image collage of the cooking process for spaghetti squash meatball bake

How to Make

Prep spaghetti squash

Preheat the oven to 400 degrees. Use a sturdy knife to cut each spaghetti squash in half, then use a spoon to scoop out all of the seeds.

Tip: If the squash is too hard to cut, poke tons of holes in them with a fork and microwave for about 1 minute. That’ll make it easier to cut!

Spray a large baking sheet with cooking spray. Sprinkle salt and pepper inside each squash half, then lay face-down on the baking sheet. Bake for about 30 minutes until you can easily scrape the squash strands loose with a fork.

Cook meatballs and combine

During the last 15 minutes or so, place the meatballs on a separate baking sheet and add to the oven, letting them cook completely.

Gently scrape as much as you can from each squash, leaving it inside the squash itself. In each one, add some of the spaghetti sauce and 3 meatballs, then top with the mozzarella.

Bake for another 10 minutes until the cheese is melted. Serve one whole squash per person, with your favorite sides!

How to Store

Once these have cooled to room temperature, store leftovers in an airtight container.

To save on space, I scraped the squash out of the shell so I wouldn’t have to find a bigger container.

Store in the fridge for 3-5 days!

Two spaghetti squash halves on a serving plate

What to Serve With This

Honestly, you could eat these by themselves. It’s got protein, veggies, and fat, and certainly large enough to make a full meal.

But you can certainly add other things as side items!

  • Side salad (I love salad kits because they’re so easy)
  • French bread
  • Roasted vegetables like green beans or broccoli
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Print the Recipe

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4-Ingredient Spaghetti Squash Meatball Bake

4-Ingredient Spaghetti Squash Meatball Bake

Yield: 8 spaghetti squash halves
Prep Time: 10 minutes
Cook Time: 40 minutes
Total Time: 50 minutes

This Spaghetti Squash Meatball Bake has only 4 ingredients! Enjoy a delicious Winter meal without all the fuss!

Ingredients

  • 4 small spaghetti squash
  • 2 cups spaghetti sauce
  • 24 frozen meatballs
  • 1 cup shredded mozzarella cheese

Instructions

  1. Preheat the oven to 400 degrees F.
  2. Cut each spaghetti squash in half, removing the seeds. Sprinkle with salt and pepper if desired, and lay face-down on a greased baking sheet. Bake for 30 minutes.
  3. Lay the frozen meatballs in a single layer on a separate baking sheet, then place in the oven during the last 15 minutes of cooking the squash.
  4. Remove both pans from the oven. Use a fork to gently scrape the insides of each squash. Divide the sauce equally among them; then the meatballs. Sprinkle mozzarella cheese on each squash half.
  5. Place back in the oven and bake for another 10 minutes until the cheese is bubbly.
  6. Serve 1 or 2 halves per person, and with your favorite sides.
Nutrition Information:
Yield: 4 Serving Size: 1
Amount Per Serving: Calories: 562Total Fat: 38gSaturated Fat: 15gUnsaturated Fat: 10gCholesterol: 66mgSodium: 1517mgCarbohydrates: 37gFiber: 7gSugar: 14gProtein: 24g

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