This super easy and satisfying low carb cheesy spaghetti squash skillet will be a huge hit with the entire family! Tender strands of spaghetti squash swimming in a tangy meat sauce and loaded with stringy mozzarella cheese? What’s not to love?!?!

This is the last of my keto spaghetti squash recipe series this week and it’s the hand’s down favorite of the Hungry dudes. I loved them all, but even I can’t deny that the sheer comfort food awesomeness of this keto cheesy spaghetti squash skillet makes it a real winner!
Like all of this week’s low carb spaghetti squash recipes, this one is super easy – maybe even the easiest, since all you have to do is brown the meat, pour in the sauce and simmer for a bit and then add the cooked spaghetti squash. Top it with a massive amount of mozzarella cheese and even the most die hard pasta fans will have to admit that this cheesy spaghetti squash skillet is a contender.

I prefer to make this keto cheesy spaghetti squash skillet with my easy keto marinara sauce, but any quality jar sauce will do in a pinch – just make sure that it’s sugar free and you should be OK.
For store bought, my favorite keto friendly marinara sauce is Rao’s – it costs a little more than mainstream store brands, but is really tasty and free from all the fillers and junk that a lot of cheaper brands contain.
Up to you, those are just my recommendations!

There is a lot of controversy on the best way to cook spaghetti squash, I usually pierce mine all over and microwave them for about 12 – 15 minutes depending on how large they are. It works well for me usually, but every once in awhile I’ll get a mushy one and I’m not sure if it’s overcooked or just a hybrid less stringy squash variety that I might have bought. It’s tasty either way.
You can use whatever your preferred method of cooking is to get tender, stringy strands of spaghetti squash that successfully mimic pasta.
As a final note, this keto cheesy spaghetti squash skillet reheats well all week, making it the perfect low carb lunch option if you have access to a microwave at your work or school!
CHEESY SPAGHETTI SQUASH SKILLET RECIPE VIDEO ??
Keto Cheesy Spaghetti Squash Skillet – Low Carb
- Yield: 6 servings 1x
Description
Tender strands of spaghetti squash swimming in a tangy meat sauce and loaded with stringy mozzarella cheese? What’s not to love?!?! Keto, Atkins, Egg Free, Nut Free, Gluten Free
Ingredients
- 1 lb ground beef (85/15)
- 1 1/2 cups easy keto marinara sauce
- 4 cups cooked spaghetti squash
- 1/4 cup grated parmesan cheese
- 1 1/2 cups shredded whole milk mozzarella
- fresh basil or parsley to garnish
Instructions
- Heat a large oven proof skillet and add your ground beef to it.
- Season with salt and pepper and cook 5 minutes, stirring so the beef is in fine pieces rather than large chunks.
- Add the marinara sauce and cook for 3 minutes.
- Add the spaghetti squash and parmesan cheese and stir well to combine.
- Top with the shredded mozzarella.
- Bake at 375 degrees for 20 minutes or until the cheese is melted and turning golden brown.
- Serve garnished with chopped fresh basil or parsley if desired.
- Category: Low Carb Dinner Recipe
- Cuisine: Italian
Nutrition
- Serving Size: 1/6th of skillet
- Calories: 330
- Fat: 23g
- Carbohydrates: 7g net
- Protein: 23g
Had a little too much fun and need to drop some pounds? Get started today with my free low carb and keto menu plans to kick start your weight loss in 2017!

Can’t get enough delicious low carb recipes? Download all five of my e-cookbooks (over 150 delicious low carb recipes) for just $19.99 for a limited time!

Brenda says
Will one squash be enough for this recipe? Thanks!!
Mellissa Sevigny says
If it’s a large one, then yes it should be plenty!
Marlene says
Yes and you will probably have some left over.
Sashanna Caldwell says
Melissa, you have made me a total lover of spaghetti squash! I love your keto recipes. Found your things on Pinterest and have been a faithful follower ever since. I just wanted to let people know that Aldi’s organic marinara sauce doesn’t have any sugar or weird fillers! I am a single mom and while I would love to make homemade sauce (and occasionally do) the price of that stuff, and the fact that it is organic and has no weird ingredients means that I always have a couple jars on hand. Just thought some people might be interested in knowing that. Keep up the awesome work, Melissa!
Mackenzie says
Aww man this looks good! I can’t eat tomato, any suggestions for a different type of sauce to go with this lovely recipe? :)
Bobbe Kinney says
Absolutely correct wanted to eat the sauce right out of the blender!!
Stephanie says
Haven’t tried it but I bet alfredo would work.
Amy S. says
My family ate baked penne, I ate this cheesy spaghetti squash skillet. AMAZING! I didn’t feel cheated and I took leftovers to work the next day. Still just as good if not better, having marinaded overnight.
Donna says
Yum….Just finished the last of the leftovers, which may be a TINY bit better than the first go around! Hubby has declared this his new favorite Keto dish. His other fave is your Cheesy Chili Spaghetti Squash! Honestly, the man just loves cheese. LOL. Anywho, this is delicious and will be made often on our LCHF journey. I used Rao’s Marinara Sauce…because I had some on hand.
Anne says
Can you freeze this dish. I only need for 1 person
Kathleen says
Anne, I tried freezing a different recipe that had a lot of spaghetti squash in it and it came out all soggy and unpleasant. We couldn’t eat it the texture was so bad.
Joan says
I’ve cut it up and from zen pieces. Came out fine!
Shadow says
This looks really good! I’ve been wanting to try spaghetti squash and I’ve tagged a couple of your recipes with it to try. I think this is going to be my first one.
Thank you for sharing with us!
Mellissa Sevigny says
This is a great one to start with Shadow!
Donna says
Hi. The recipe says five servings; however, the nuttier break down says 1/6 of the recipe. Which is it? Otherwise, this looks tasty!! I have a spaghetti squash and know what I’m going to do with it now!!!
Donna says
Nutrient…not nuttier! Haha
Mellissa Sevigny says
Thanks for catching that! It’s 6!
Annemarie says
This looks amazing. Can I ask what are those cute square pans you used? I love that you made this in individual servings.
Mellissa Sevigny says
I bought these here in Belize, but I’ve seen them in the states too! If you want to do individual servings like this you can also do them in the mini cast iron pans which can be bought in sets in the states! Here’s a 4 pack of lodge cast iron on Amazon!