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    Home » Low Carb » Cheeseburger Spaghetti Squash Casserole – Easy Keto Dinner

    Published: Jan 30, 2019 · Modified: Feb 6, 2021 by Carolyn

    Cheeseburger Spaghetti Squash Casserole – Easy Keto Dinner

    This post may contain Amazon or other affiliate links. As an Amazon Associate I earn from qualifying purchases.

    7.6K shares
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    An easy Keto Cheeseburger Casserole recipe with spaghetti squash. This simple skillet casserole is the whole meal in one pan and it’s delicious and filling. Topped with bacon for extra flavour and family appeal!

    Easy Cheeseburger Casserole with Spaghetti Squash

    Who doesn’t love a big juicy cheeseburger? Better yet, a big juicy bacon cheeseburger!

    We love them in my house but we gave up the buns ages ago. Yes, there are keto buns out there but I’ve found that I really love finding more creative ways to serve up all those cheeseburger flavours.

    And this Cheeseburger Spaghetti Squash Casserole may be my most creative version yet! Not to mention delicious and healthy. It’s a whole meal in a single pan and it appeals to kids and adults alike. And it got my kids to willingly eat spaghetti squash, which can’t be said about most recipes.

    Sprinkling cheese over a spaghetti squash casserole

    Spaghetti Squash Casserole Inspiration

    This keto casserole recipe was inspired by the spaghetti squash sitting on my counter. My husband and I recently joined an organic vegetable delivery subscription called Full Circle. It’s great because we can customize our box each week and take out the things we don’t think we will use, replacing them with other favourites.

    But I do try to have an open mind and sometimes have them send things I wouldn’t normally purchase myself. We can all easily get into a veggie rut, where we buy the same 5 vegetables over and over.

    Spaghetti squash is something we do buy sometimes but the kids don’t love it unless it’s covered with copious amounts of tomato sauce. But one came in our subscription box and I wanted to find a new way to use it. Since many conventional cheeseburger casserole recipes include pasta, I thought it might make a great low carb sub.

    One of the easiest ways to cook spaghetti squash is roasting it in your oven. I simply cut mine in half crosswise, which is easier than lengthwise. Then I scooped out the seeds and roasted at 400F until I could easily squeeze it. This takes about 40 to 50 minutes for a medium squash.

    A serving of cheeseburger casserole in a white dish

    How To Make Keto Bacon Cheeseburger Casserole

    Once the spaghetti squash is roasted, the rest of this cheeseburger casserole recipe comes together in a snap!

    Since this is a keto recipe, I cooked my bacon first and then proceeded to use the bacon fat to cook the remaining ingredients. I did not drain any of the grease from the pan, even after I cooked my burger meat. This makes the casserole more filling and luscious. You can drain some if you like but I love all that healthy fat.

    To make the ground beef taste more like a real burger, I added a bit of unsweetened ketchup from Primal Kitchen. That’s good stuff, y’all! I suggest checking it out. It has all the flavor of regular ketchup with NO added sweeteners.

    I also added a touch or Worcestershire sauce. The Lea & Perrins brand is gluten-free and a few teaspoons helps amp up the meaty flavor in keto casseroles like this.

    Cheeseburger spaghetti squash casserole in a skillet

    My original intention was to spread everything in a casserole dish and bake it. But then I realized I had already done all of the cooking in a skillet and it would be simpler and less messy to finish it off that way. Why dirty more dishes, right? So once the meat was cooked, I scooped out the flesh of the squash and stirred it right into the pan.

    Then I simply topped it all with the cheese and put a lid on it, letting it cook through for a few more minutes. Once the cheese was melted, I sprinkled the chopped bacon over top and dinner was done.

    How easy is that?

    Winner winner cheeseburger dinner. I thought this was phenomenal and my kids liked it too. It was easy to make and very satisfying. A delicious keto comfort food recipe.

    Scooping up keto cheeseburger casserole

    More Delicious Keto Casseroles

    Keto Shepherd’s Pie

    Meatball Parmesan Casserole

    Taco Pie

    Mexican Cauliflower Rice 

    Chicken Florentine Casserole

    Easy Keto Lasagna Bake

     

    Cheeseburger spaghetti squash casserole in a skillet

    Cheeseburger Spaghetti Squash Casserole

    An easy Keto Cheeseburger Casserole recipe with spaghetti squash. This simple skillet casserole is the whole meal in one pan and it's delicious and filling. Topped with bacon for extra flavour and family appeal!
    4.92 from 24 votes
    Print Pin Rate
    Course: Main Course
    Cuisine: American
    Keyword: cheeseburger casserole, spaghetti squash casserole
    Prep Time: 10 minutes
    Cook Time: 1 hour 15 minutes
    Total Time: 1 hour 25 minutes
    Servings: 6 servings
    Calories: 431kcal

    Ingredients

    • 1 medium spaghetti squash
    • 4 slices bacon, chopped
    • 1 lb ground beef
    • 2 cloves garlic, minced
    • ½ teaspoon salt
    • ½ teaspoon pepper
    • 2 tablespoon sugar free ketchup
    • 2 teaspoon Worcestershire sauce
    • 6 ounces shredded Cheddar (about 1 ½ cups)
    US Customary - Metric

    Instructions

    • Preheat the oven to 400F and line a baking sheet with parchment paper. Cut the squash in half crosswise and scoop out the seeds. Set the squash cut-side down and bake until the squash is soft enough to be squeezed, about 40 minutes.
    • Meanwhile, cook the bacon in a large skillet over medium heat until crisp. Remove to a paper towel lined plate. In the same skillet, cook the ground beef, breaking up any clumps with the back of a wooden spoon. 
    • When the beef is almost cooked through, about 7 minutes, add the garlic, salt, and pepper. Cook until no longer pink, another 2 or 3 minutes. 
    • Stir in the ketchup and Worcestershire sauce. Scoop the flesh out of the squash and stir in until well mixed into the ground beef. Spread out evenly over the bottom of the skillet
    • Sprinkle with the shredded cheddar cheese and cover the skillet. Reduce the heat to low and let the cheese melt, about 5 minutes. Sprinkle the bacon overtop and serve. 
    Nutrition Facts
    Cheeseburger Spaghetti Squash Casserole
    Amount Per Serving (1 serving = about 1 cup)
    Calories 431 Calories from Fat 259
    % Daily Value*
    Fat 28.8g44%
    Carbohydrates 6.5g2%
    Fiber 1.6g6%
    Protein 30.5g61%
    * Percent Daily Values are based on a 2000 calorie diet.
    7.6K shares

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    Nutritional Disclaimer

    Please note that I am not a medical or nutritional professional. I am simply recounting and sharing my own experiences on this blog. Nothing I express here should be taken as medical advice and you should consult with your doctor before starting any diet or exercise program. I provide nutritional information for my recipes simply as a courtesy to my readers. It is calculated using MacGourmet software and I remove erythritol from the final carb count and net carb count, as it does not affect my own blood glucose levels. I do my best to be as accurate as possible but you should independently calculate nutritional information on your own before relying on them. I expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website.

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      Recipe Rating




    1. Peggy Wilkins says

      January 16, 2023 at 11:12 am

      How many pounds would does a ‘medium’ spaghetti squash weigh? There is such a wide variety of sizes at grocery stores. Thanks

      Reply
    2. Jessica Walsh says

      January 03, 2023 at 6:58 pm

      5 stars
      This is sooo yummy!! Very hearty and filling with minimal ingredients. My kids loved it and went for seconds! The only thing I added was some dill pickle slices when serving and it made it even more cheeseburger delicious.

      Reply
    3. Jaime says

      October 14, 2022 at 2:32 pm

      5 stars
      This is absolutely delicious! Even my picky daughter went back for seconds. This will definitely be in our regular dinner rotation. Thanks for the great recipe!

      Reply
    4. Rob Miles says

      April 01, 2022 at 4:43 pm

      5 stars
      I just made this tonight, and it’s excellent! After the cheese had melted good, I stuck the pan under the broiler for 4 or 5 minutes to get a good, bubbling crust on it!

      Reply
    5. Jo Anne Georgie says

      February 21, 2022 at 3:42 pm

      5 stars
      I’m new to Keto, and my husband and I have never tried spaghetti squash, so I was cautiously optimistic of this recipe. But it turned out so delicious, we both really love it, and I will definitely be making this casserole again! Only thing I did different, I removed the meat after cooking, and put the spaghetti squash on the bottom, and then layered the meat, cheese, and bacon on top (just in case we didn’t like the squash, we could eat the cheeseburger part????). I’ve tried a number of your recipes, and LOVED every one I’ve tried! Thank you Carolyn!!

      Reply
    6. Brenda says

      January 20, 2022 at 6:51 pm

      5 stars
      I made this for dinner tonight and it was a 2 thumbs up for me.. thank you for spending time crafting these recipes! I really appreciate you doing so

      Reply
    7. Bonnie says

      September 20, 2021 at 5:47 am

      5 stars
      I made this for dinner last night. Simple to make and delicious! This will be a new regular in our dinner rotation!

      Reply
    8. Alison Witt says

      August 11, 2021 at 1:10 pm

      5 stars
      I’ve been trying different spaghetti squash recipes, and I really like this one! I cook my spaghetti squash in the microwave and use bacon bits instead of cooking bacon just to save time. This has become a regular in my household!

      Reply
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