Our Baked Spaghetti Squash recipe is loaded with delicious flavors of garlic, Parmesan, and tomatoes. It is the perfect dish for when you're trying to avoid carbs, but you're craving pasta. This dish seems decadent, but it's really pretty good for you!

You might also enjoy this yummy Oven Roasted Acorn Squash or our Roasted Frozen Cauliflower.
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I know what you're thinking... Juggling Act Mama is doing a vegetable recipe - as a main dish??
Yes, I am.
Sure this is a far cry from my decadent Pulled Pork Mac and Cheese, but this Baked Spaghetti Squash recipe is so delicious, you will make it again and again for your family. It's a great way to get your kids to eat more veggies, too!
This recipe has all the cheesy, garlicky goodness of an Alfredo bake, without the heavy cream or pasta. I know you're skeptical, I was too. Roasting the spaghetti squash first brings out a rich flavor in the vegetable. All you need is a sheet pan, salt, pepper and olive oil. It's so simple!
And let's face it, cheese is one of my all-time favorite ingredients. Everything is better with cheese. Pile on the Parmesan and you've got me wrapped around your finger!

Ingredients
- spaghetti squash
- Parmesan cheese
- fresh garlic
- fresh tomatoes
- butter
From the pantry: olive oil, salt, and pepper.
For a list of some of my favorite items to use when cooking, and why I chose them, please visit my Kitchen Resource page.
Instructions
Here's how to make Baked Spaghetti Squash that your whole family will crave:
- Saute the garlic in the olive oil in a large pan then toss in all the spaghetti squash.
- Remove from the heat and add butter.
- Grease a casserole dish and preheat the oven to 350-F degrees.
- Transfer the spaghetti squash mixture to the baking dish.
- Top with cheese and sliced tomatoes.
- Bake for 30 minutes until the cheese is golden and bubbly.
How simple is that? And it tastes amazing - you really won't miss the pasta with all this cheesy goodness! (But just in case you do miss the real stuff, check out my delicious Homemade Spinach Pasta that's made from scratch in just 30 minutes.)
How do I bake a whole spaghetti squash?
- Slice the spaghetti squash in half. Scoop out the pulp and seeds and discard.
- Add olive oil, salt and pepper to both sides of the spaghetti squash.
- Bake cut side down at 375-F degrees for 40 minutes until golden and tender.
- Scrape the slightly cooled spaghetti squash with a fork.
Serving Suggestions
This baked spaghetti squash recipe is perfect as a main meal, but if you're wanting to add a little protein to your meal, you could serve with grilled chicken breast.
This is also amazing with a side of Italian chicken meatballs!
Similar Low Carb Recipes
- Use cauliflower rice in this yummy Italian wedding soup for a low-carb version.
- Or make this buffalo chicken soup just the way it is for a delicious meal.
- Our spicy chicken meatballs are made with lots of parmesan cheese and keto breadcrumbs.
- Pulled pork stuffed zucchini is not only a delicious low-carb meal, but it's a great way to use up pulled pork leftovers.
Mashed cauliflower and zucchini noodles make great alternatives to pasta, rice, or potatoes.
More Recipes
Love casseroles? Give these reader favorites a try!
- Chicken Pasta Bake - packed with shredded chicken, creamy pasta, and plenty of cheese, it's sure to be a family favorite.
- Cheesy Hamburger Casserole - kids love this casserole that tastes like Hamburger Helper, but WAY better.
- Chicken Stuffing Bake - a delicious, fragrant casserole that's packed with veggies and loads of flavor.
Here are some other low carb recipes you'll love:
Recipe Variations
Try using our Garlic and Basil Compound Butter for extra flavor. You can also add a pinch of red pepper flake to the olive oil when you're sauteing the garlic for a little extra kick.

Not ready to make delicious cheesy baked spaghetti squash recipe yet?
When you do make it, please come back and comment and leave me a ⭐⭐⭐⭐⭐ rating below!

Baked Spaghetti Squash
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Ingredients
- 1 large spaghetti squash
- Olive oil salt and pepper
- 1 garlic minced
- 3 tablespoons olive oil
- 1 tablespoon butter
- 1 cup Parmesan cheese
- 1 large tomato, sliced optional
- chives or parsley
Instructions
- Preheat oven to 375-degrees F. Cut the ends of the squash, then cut it in half, lengthwise. Scoop out all the seeds and pulp; discard.1 large spaghetti squash
- Drizzle the squash with olive oil and season with salt and pepper. Place them face down on a cookie sheet and drizzle a little more olive oil on the skin. Cover and bake for 40 minutes.Olive oil
- Once cool enough to handle, scrape the inside of each squash with a fork. Set aside while you make the garlic and olive oil mixture.
- Preheat the oven to 350-degrees F and lightly grease a baking dish with butter or cooking spray.1 tablespoon butter
- Saute the garlic in the olive oil in a large pan. After a minute toss in all the spaghetti squash. Coat the squash with the oil and garlic until the garlic is well cooked and the squash is heated. Remove from heat and add the butter.1 garlic, 3 tablespoons olive oil
- Spoon into a large baking dish and top with Parmesan cheese, if desired.1 cup Parmesan cheese
- Top with slices of tomato and a sprinkle of salt.1 large tomato, sliced
- Bake for 30 minutes or until cheese is bubbly. Then switch to broiler just until the cheese is slightly browned. Garnish with parsley or chives, if desired.chives or parsley
For best results, be sure to check our Tips and FAQs above with important tips and questions that can help your delicious recipe come out perfectly.
Meal Planning
Want to add this recipe to your meal plan? Download our free printable meal plan here.

This recipe is included in Meal Plan 4 along with:
- 40 clove garlic chicken
- buttery dinner rolls
- chocolate hummus
- waffle fry nachos
- Buffalo chicken soup
- cheesy hamburger casserole
- bacon puff pastry twists
... and more!
Be sure to check out all our meal plan ideas here.
rachel says
I tried this and it was SO good! I added a little extra cheese - I had cheddar on hand - and it was delicious!
Ang Paris says
I'm with you!! Cant go wrong with more cheese!
Alanna says
Cant wait to try this, thanks!
Ang Paris says
I hope you love it! Be sure to let me know what you think!