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You are here: Home / Main Dish / Keto Pizza Casserole

Keto Pizza Casserole

November 8, 2012 By Tessa 48 Comments

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A delicious low-carb, keto pizza casserole for families!  The flavors of your favorite pepperoni pizza of the past will come alive in this comforting casserole dish!

With spaghetti squash as a base, this casserole is not only low carb, but even those not monitoring their carbohydrate intake will enjoy dinner!

green terracotta bowl filled with paleo pizza casserole topped with golden cheese

A sneaky way to get your pizza fix with no dairy and no grains.

This dish is so darn convincing, that my super picky veggie-averse children even gobbled this down.  And not just the first time: we have made this four times already!  A delicious, comforting casserole perfect just about anytime of the year!

Anything that resembles pizza is definitely worth a try since my kids happily consume just about any pizza in any form.

Every single person who has had this dish LOVES it, and asks for the recipe…so TRUST ME!

Spaghetti squash may be new to some of you, but this simple, mild squash has a lovely little secret: when cooked al dente, the squash shreds in to noodlely (not a word, sue me!) threads that resemble noodles…but better!  With only 40 calories a cup….and no difficult grains to digest, this casserole is a low-carb gem.

Dig in people…any dish so loaded with veggies and flavor should be a must on our menus!

an close up of a parmesan topped pepperoni and ground beef spaghetti squash casserole

Keto pizza casserole ingredient notes:

  • To roast a spaghetti squash, please see my post on how to PERFECTLY cook your squash!  I have found the key to enjoying this squash is to NOT overcook it!  While there are many methods, I consistently come back this oven roasting method as it gives me more control over the doneness!
  • I have used ground beef in this recipe…but any ground meat or sausage are delicious too!
  • While any jarred spaghetti sauce will work, we like to use my homemade tomato sauce whenever I have some on hand!!
  • Here’s a similar idea if spaghetti squash isn’t your thing! Mushroom pizza stuffed zucchini boats.

 

birds eye view of a green ceramic bowl filled with a spaghetti squash pizza casserole with a glass of red wine

Want more low carb dinners to try?

  • This keto pesto casserole uses spaghetti squash too!  SO make plenty of squash in one sitting, and you’ll have enough to make TWO dinners!
  • My family loves this bacon cheeseburger soup!  It also sneaks in a whole of undetectable veg!
  • Instant Pot chicken abobo is quick and easy to make!
  • I was so happy to perfect this Instant Pot cube steak recipe!
  • I love this cabbage with keilbasa!

overhead view close up of a pepperoni and cheese spaghetti squash casserole

Keto Pizza Casserole Recipe:

If you try this low carb casserole, be sure to come back and leave a comment and rating!

Paleo Pepperoni Pizza Casserole

Tessa the Domestic Diva
A low carb spaghetti squash based casserole with ground beef, pepperoni, and cheese!
5 from 25 votes
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Prep Time 20 minutes mins
Cook Time 30 minutes mins
Total Time 50 minutes mins
Course Main Course
Cuisine Italian
Servings 6
Calories 477 kcal

Ingredients
  

  • 1 pound ground beef
  • 8 ounces pepperoni, chopped & divided (we like Applegate Farms w/ no nitrates and dairy free)
  • 1 onion diced small
  • 4 cloves garlic minced
  • 1 teaspoon sea salt or more to taste
  • 1 teaspoon oregano basil, and thyme
  • 4 cups spaghetti squash noodles apx, see cooking notes above
  • 2 cups favorite spaghetti sauce - we use my Homemade Blender Pasta Sauce
  • 2 eggs
  • 1/2 cup Daiya mozzarella cheese or pecorino romano and few tablespoons extra for sprinkling, optional

Instructions
 

  • Preheat oven to 400 degrees.
  • In a large skillet over medium heat, saute the ground beef, 1/2 of the pepperoni, onion, and garlic.
  • As the ground meat cooks, sprinkle in the seasonings. Taste (when cooked!) and add more to your liking if necessary.
  • In a large bowl, mix the warm beef mixture, spaghetti sauce, squash threads, eggs, and cheese of choice.
  • Place into a greased casserole dish ( I used a 9 X 9).
  • Top with the remaining pepperoni and a sprinkling of cheese.
  • Bake for 30 minutes, or until golden and bubbly.

Nutrition

Calories: 477kcalCarbohydrates: 10gProtein: 27gFat: 35gSaturated Fat: 13gCholesterol: 156mgSodium: 1661mgPotassium: 693mgFiber: 2gSugar: 5gVitamin A: 525IUVitamin C: 9mgCalcium: 154mgIron: 3.6mg
Keyword keto pizza casserole, keto pizza casserole recipe, low carb pizza casserole, pizza casserole keto
Tried this recipe?Let us know how it was!

pinterest ready green ceramiz baking dish filled with spaghetti squash, pepperoni, ground beef in a tomato sauce and topped with golden parmesan cheese

 

 

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Reader Interactions

Comments

  1. Dottie B says

    June 4, 2022 at 4:16 AM

    5 stars
    This is too good! I made it for myself because it sounded delicious never thinking my husband would eat spaghetti squash, but he devours it every time I make it. Great recipe!

    Reply
    • Tessa says

      June 5, 2022 at 3:47 PM

      I know Dottie…this one wins over the skeptics over and over! Glad you liked it! Thanks for coming back and letting me know!

      Reply
  2. KLK623 says

    April 21, 2021 at 4:10 PM

    5 stars
    I loved this!! And I didn’t even use cheese. Thanks for a great recipe.

    Reply
    • Tessa says

      April 24, 2021 at 7:42 AM

      Nice! I am so glad you enjoyed it! So much flavor from the pepperoni. ground beef, and tomato sauce anyways!

      Reply
  3. Danielle @ Thrive Ministries says

    December 12, 2015 at 5:59 AM

    5 stars
    Made this last night for the 2nd time but without meat (just because). I added a few more pepperoni. Hubs went back for seconds!

    Reply
    • Tessa Simpson says

      December 12, 2015 at 6:15 AM

      Thanks Danielle!!

      Reply
  4. Danielle @More Than Four Walls says

    October 28, 2015 at 2:22 PM

    5 stars
    My sister in law gave me this recipe and it was a hit! (And my husband doesn’t like spaghetti squash) 😉

    Reply
    • Tessa Simpson says

      October 28, 2015 at 7:16 PM

      This is a good recipe to win over skeptics Danielle! Glad it worked in your house too!

      Reply
  5. Donna says

    November 5, 2014 at 1:24 PM

    I would love to try your blender pasta sauce

    Reply
  6. Jessi says

    June 27, 2014 at 10:14 AM

    5 stars
    This was delicious! I thought it would be good but it was even better than I expected! My husband, who usually isn’t a big fan of Italian type foods, really enjoyed it, and my 16 month old had three (toddler size) servings! The only thing I did differently was to use less pepperoni. I had about 4 oz left over from a different recipe and I thought that was just the right amount. I will definitely be making this again!!

    Reply
    • Tessa Domestic Diva says

      June 28, 2014 at 5:18 AM

      I agree Jessi, it is surprisingly good…even for the picky ones! Thanks for your feedback!

      Reply
  7. Bake Up, Little Suzy says

    June 22, 2014 at 10:52 AM

    5 stars
    You’ve answered my pizza-craving prayers! I used turkey pepperoni and skipped the cheese, but otherwise prepared the recipe as written. Delicious! This is going into the regular rotation.

    Reply
    • Tessa Domestic Diva says

      June 22, 2014 at 6:56 PM

      Yay Bake Up Little suzy! I am glad it satisfied some cravings!

      Reply
  8. Suzette says

    June 9, 2014 at 11:51 AM

    5 stars
    Just made this for the second time and it is still amazingly delicious. It is easy to pack and I make it for the week for lunch. Thanks for a great recipe! 🙂

    Reply
    • Tessa Domestic Diva says

      June 10, 2014 at 7:46 PM

      Thanks for the feedback Suzette!

      Reply
  9. Kim Robinson says

    February 12, 2014 at 9:20 PM

    5 stars
    We just had this for dinner – it was so good! I will definitely make this again! Thanks for the great recipe.

    Reply
  10. krystal says

    January 6, 2014 at 2:57 PM

    5 stars
    I love this recipe. I’ve made it a few times, and even the hubby loves it!

    Reply
  11. Alison says

    November 22, 2013 at 11:43 AM

    5 stars
    I made this last night and had to use pancetta b/c we were out of pepperoni. My kids saw me cooking the squash and kept saying “do we have to eat that?” I just smiled and filled the kitchen with delicious smells of hamburger, onions, and pancetta cooking. They gobbled it down and asked if there were enough leftovers for tonight! When I asked them how they liked the spaghetti squash in it they said “Oh, we just thought you forgot to feed us that and kept our mouths shut about it! It was in the hamburger stuff?”

    Reply
  12. Karen says

    November 20, 2013 at 5:40 PM

    5 stars
    I tried this recipe this week and it is AMAZING! Even my co-workers that do not eat Paleo loved it so much I brought in the leftovers for everyone for lunch! SO GOOD!

    Reply
  13. Sara says

    November 5, 2013 at 7:18 AM

    We eat in 2 shifts (kids first and my husband and I eat later). Have you reheated? Just wondering how the spaghetti squash would hold up.

    Reply
    • Tessa Domestic Diva says

      November 5, 2013 at 12:38 PM

      yep, this casserole will work well for you Sara!

      Reply
  14. shannon says

    October 14, 2013 at 7:34 PM

    5 stars
    Well I have to say this is my first attempt at dealing with spaghetti squash. I have been trying to switch to a paleo diet (trying being the key word!) and stumbled across this recipe on Pinterest. This was pretty easy to make, though i am not sure how you fit it in a 9×9 pan cause it filled my 13×9 quite nicely.
    Well it definitely passed the taste test! I will be keeping this in my recipe box. Hope it keeps well as leftovers 🙂

    Reply
    • Tessa Domestic Diva says

      October 14, 2013 at 8:30 PM

      Spaghetti sqaush come in all sizes, yours could have been a biggy! Thanks for sharing your feedback SHannon!

      Reply
  15. Carie says

    October 8, 2013 at 3:38 PM

    Can you make this ahead and bake the next day?

    Reply
    • Tessa Domestic Diva says

      October 8, 2013 at 5:00 PM

      I have done it for a couple of new moms to rave reviews!

      Reply
  16. Kristy Kelley says

    September 9, 2013 at 1:09 PM

    Could you leave out the eggs for egg-allergy? What would be a good substitute? Chia egg?

    Thanks in advance!

    Reply
    • Tessa Domestic Diva says

      September 9, 2013 at 1:45 PM

      Hi Kristy, the egg helps bind the casserole as the spaghetti sqaush releases water. I have done this without eggs and noticed a very subtle difference…just a bit more moist is all. Any binder that absorbs water should work fine too!

      Reply
  17. Anthea says

    July 30, 2013 at 10:11 AM

    5 stars
    Made this last night to rave reviews. Thanks for the recipe!

    Reply
  18. Emily says

    January 6, 2013 at 4:31 PM

    5 stars
    Thank you for sharing this goodness! I am a real person feeding real people and I loved it…It feed a deep craving for pizza & so much more! Thanks!

    Reply
    • Tessa Domestic Diva says

      January 6, 2013 at 7:08 PM

      I think it is super satisfying too Emily’ thank you for taking a moment to let me know!

      Reply
  19. Sharon says

    December 9, 2012 at 2:19 PM

    5 stars
    Was looking for an alternate recipe for Spaghetti Squash and this is fantastic. Was worried after test tasting that it would be bland, but the finished product has a lot of flavor. Next time I’ll add some red pepper flakes, just ‘cuz I like them on my pizza, but this is great as as. Thanks for the recipe. This is going in my favorites.

    Reply
    • Tessa Domestic Diva says

      December 9, 2012 at 2:37 PM

      So glad…I know I always worry about the bland thing too…I love full flavors!! We add pepper flakes to ours, our kids just won’t go for them! Thanks for commenting and providing feedback…always valuable!

      Reply
  20. Dina-Marie @ Cultured Palate says

    November 28, 2012 at 12:40 PM

    This sounds great – I have just found spaghetti squash and am excited to have a new recipe!
    I would love to have you share this on Thursday at Tasty Traditions: http://myculturedpalate.com/

    Reply
  21. amber says

    November 20, 2012 at 2:23 PM

    Featuring this tonight my friend. Such a great recipe! 🙂

    Reply
  22. France @ Beyond The Peel says

    November 19, 2012 at 6:23 PM

    What a fun idea.Who needs the crust anyway. This looks heavenly.

    Reply
  23. April @ The 21st Century Housewife says

    November 18, 2012 at 12:17 PM

    I love the word noodlely 🙂 This sounds like such a delicious casserole and I love that it uses spaghetti squash instead of noodles.

    Reply
  24. amber says

    November 16, 2012 at 9:39 AM

    Hi Tessa,

    This looks so amazing and simple! Thanks for another great dinner recipe my friend.

    Hope you’re all well! Miss you…we need to catch up soon. Busy on this end with the big move coming up here soon. But right now I’m focusing on our Nutcracker performances and Thanksgiving. (each year me and Sky dance in a local ballet production of the Nutcracker…and rehearsals are off the hook…and we perform the Fri/Sat/Sun after Thanksgiving…it’s a busy few days, but fun). 🙂

    Reply
    • Tessa Domestic Diva says

      November 16, 2012 at 12:52 PM

      I think you will love it Amber…a must try! It has been so quiet over your way..but it doesn’t mean I am not thinking of you! There are only so many hours in a day…and it sounds like you are spending them well with your daughter! Have fun!

      Reply
  25. Jen | my BIG FAT grain free life says

    November 14, 2012 at 8:50 AM

    5 stars
    Oh my WORD! I made this for my crew (and my daughter’s friend) and last night and they absolutely LOVED it! Still talking about it today and having leftovers for lunch.

    Thanks for this wonderful recipe!

    Jen

    Reply
    • Tessa Domestic Diva says

      November 14, 2012 at 8:54 AM

      I know Jen,it is a real people pleaser, regardless if you have food restrictions or not! I might be making this for dinner tonight again….sounds better than my other plan!

      Reply
  26. Cindy (Vegetarian Mamma) says

    November 13, 2012 at 8:47 AM

    Got this tweeted and pinned! We do this all the time!! 🙂

    Reply
  27. Jen says

    November 12, 2012 at 4:22 AM

    This is on my menu plan this week! I can’t wait to make it! I LOVE spaghetti squash al dente too. It’s easy to make and takes on sauces well. I’ve used it as a side dish with pesto tossed in. So easy and yummy.

    Thanks for posting! My kids are gonna love me for making this.

    Jen

    Reply
    • Tessa Domestic Diva says

      November 12, 2012 at 7:13 PM

      Hope you all love as much as we do Jen…al dente is the KEY!!

      Reply
  28. Joy at The Liberated Kitchen says

    November 10, 2012 at 11:29 AM

    Um, yes. Holy cow, this looks gooood! Thanks for sharing on GAPS Friendly Friday, Tessa!

    Reply
  29. Laura @ Gluten Free Pantry says

    November 9, 2012 at 8:49 PM

    YUM! I want this for dinner tomorrow night! Super tasty dish my dear.

    Reply
  30. Angie@ConsciousEatery says

    November 9, 2012 at 7:01 AM

    Tessa, you’re recipes ALWAYS catch my eye! I’m a paleo fan and an allergy-free baker. In fact, I’m making your pumpkin snickerdoodles today! Thanks for all of the inspiration!

    Angie@ConsciousEatery

    Reply
  31. Megan @ Allergy Free Alaska says

    November 8, 2012 at 9:32 PM

    Tessa,
    This looks amazing! What a great, practical, and EASY recipe! If I could have tomatoes, I’d make it in a heartbeat.
    Megan

    Reply
  32. kristy @ coconutmama says

    November 8, 2012 at 9:17 AM

    I made this the other day and my kids loved it too!

    Reply

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Welcome, I am happy you are here!

My name is Tessa, I am a momma and teacher who learned to cook allergy friendly foods when her third kiddo needed it.   Real food is my obsession. Gluten free, dairy-free, vegan, paleo, and keto recipes for families. Read More About Me An My Family’s Real Food Allergy Journey Here.

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