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Home By Diet Gluten-Free

Cheeseburger Casserole With Spaghetti Squash

★★★★★ 34 Reviews Recipe Print
gf nf
By: Erin2/23/22

This post may contain affiliate links. Please read my disclosure policy.

Spaghetti Squash Cheeseburger Casserole
Spaghetti Squash Cheeseburger Casserole

Craving a juicy burger? Try making this delicious cheeseburger spaghetti squash casserole instead! It’s a perfect low-carb dish with all of your favorite burger toppings.

cutting spaghetti squash cheeseburger bake

Tasty Cheeseburger Spaghetti Squash Bake

There are a bunch of different ways to replace pasta – from zucchini noodles to noodles made from hearts of palm. I personally think spaghetti squash is the best one!

It’s like nature created these noodles, already made in perfect little strands. All we have to do is cook them!

Seriously, once you figure out how to cook spaghetti squash, you will start looking for more recipes. It’s such a versatile vegetable. If you can make something with pasta, you can make it with spaghetti squash.

For this casserole, I took my inspiration from a classic cheeseburger. Who knew that all these ingredients would taste so divine together? Ketchup, mustard, onion, pickles, and cheese – it’s all there!

The only thing I didn’t add was some kind of tomato. If you want to dice up a fresh tomato and mix it in, go ahead. It will taste delicious with tomatoes too.

Are you ready to find out how to make the most amazing cheeseburger casserole ever? Keep reading! You are going to love this.

spaghetti squash cheeseburger bake

Ingredients Needed

This cheeseburger casserole has all your favorite toppings and ingredients in it but it is made with gut-health spaghetti squash instead of a high-sugar white bun.

  • Spaghetti Squash: To make this casserole, you need 1 spaghetti squash that is already pre-cooked. Check out my guide on how to bake a whole spaghetti squash!
  • Olive Oil: You need about a tablespoon, just enough to saute the onion and garlic.
  • Onion: For the best flavor, dice up 1/2 a yellow onion. If you use an entire onion, it might overpower the rest of the casserole.
  • Ground Turkey: It takes an entire pound of turkey to make this casserole. For the best reults, use 93/7 blend.
  • Garlic: Mince 2 garlic cloves. You can use more if you want it to have a stronger flavor.
  • Salt and Pepper: This enhances the other flavors in the casserole. I used a pinch, which is about 1 teaspoon. Use half as much pepper, about 1/2 a teaspoon. Just sprinkle some in with the rest of the ingredients.
  • Ketchup and Mustard: Add 1/2 a cup of ketchup to the sauce so that it has an incredibly tangy taste. Use half as much mustard – 1/4 a cup! This brings out the zestiness of the kethcup and makes it taste like an authentic cheeseburger.
  • Nonfat Plain Greek Yogurt: Add 1/4 of a cup as this gives the cheeseburger casserole some added protein and makes it taste really creamy.
  • Pickles: I used dill pickles, just like you would find on a classic cheeseburger.
  • Lite Cheddar Cheese: Use 1 cup of cheese. For the best flavor, try grating your own cheese at home!
  • Eggs: These act as a binding agent, keeping all the ingredients in the casserole together. You’ll need 3 eggs for the entire dish.
ingredients for spaghetti squash cheeseburger bake

Kitchen Tools Required

If you have ever made a casserole before, then you probably already have everything you need. Here is what I used.

  • 9×9 Baking Dish
  • Saute Pan
  • Small Mixing Bowl
  • Whisk

For measuring, you will need 1 cup, 1/2 cup, 1/4 cup, 1 tablespoon, 1 teaspoon, 1/2 teaspoon.

How To Make Cheeseburger Casserole With Spaghetti Squash

Here’s how to make this delicious and healthy casserole. The hardest part is waiting for it to bake.

First, preheat the oven to 400F and grease the 9×9 baking dish.

Next, cook the spaghetti squash however you prefer. I have a method that I use here. After it is baked, scoop out all spaghetti squash strands and place them in a large bowl. Set it aside for later.

In a saute pan, heat the olive oil. Add the onion and cook for about 2 minutes. Add ground turkey, salt, pepper, and minced garlic and cook until the turkey is no longer pink. Turn off the heat and add to bowl with spaghetti squash.

Mix together the ketchup, mustard, greek yogurt, and pickles in another small bowl. Pour into the bowl with the spaghetti squash and turkey.

Whisk three eggs in the leftover sauce bowl, then add them to the spaghetti squash mixture.

Next, add half of the cheese into the spaghetti squash mixture and then stir up the entire mixture very well so everything is very well combined and mixed together.

Pour into a greased dish and top with the remaining cheddar cheese.

Bake for 1 hour. Let cool 15 minutes before serving!

making spaghetti squash cheeseburger bake
making spaghetti squash cheeseburger bake

Recipe Tips

Below are some common spaghetti squash questions. Don’t see the question you are looking for? Leave a comment at the bottom of this post!

How do you cook spaghetti squash?

You can cook spaghetti squash in the oven, microwave, and even the air fryer or Instant Pot!

My favorite way is to roast it in the oven. I think it comes out perfectly every single time, it’s basically no-fail. This recipe takes you step-by-step through the entire process.

My 2nd-favorite way is to cook it in the microwave. Pierce the spaghetti squash about 8-10 times with a fork. Then, place the entire thing (unsliced) in the microwave for 4 minutes. Then, let it cool and slice it open lengthwise.

Remove the seeds and bits from the middle. Place 1/4 a cup of water in the bottom of a casserole dish and put the squash cut side down in the dish. Cover it tightly with plastic wrap. Cook it in the microwave for another 10 minutes.

Carefully remove the plastic wrap and begin to shred the strands of spaghetti squash with a fork.

How do you make this casserole spicier?

If you want this casserole to have a bit of kick, add some sliced jalapenos to the sauce!

How do you keep spaghetti squash casserole from becoming watery?

This casserole isn’t usually watery – especially if you use the 3 eggs to bind it all together. If you think it has too much liquid, you can salt the spaghetti squash after you cook it and let it sit out for about 10 minutes before you add the turkey and sauce.

sticking fork into spaghetti squash cheeseburger bake

Storing leftovers

This casserole really tastes the best when it is fresh out of the oven. Store it in an airtight container in the refrigerator. It will only last about 3 days.

It will still taste delicious the next day but eat it soon for the best taste.

If you liked this recipe, you’ll want to try these!

Here are some more of my favorite casserole-style dishes. Enjoy!

  • Buffalo Chicken Casserole With Cauliflower
  • Broccoli Cheddar Spaghetti Squash Casserole
  • Buffalo Chicken Sweet Potato Casserole
  • Lemon Chicken Spaghetti Squash Casserole
  • Healthy Turkey Enchiladas

Recipe by Erin Morrissey and Photos by The Mindful Hapa

spaghetti squash cheeseburger bake
sticking fork into spaghetti squash cheeseburger bake
★★★★★ 4.9 from 34 reviews

Cheeseburger Spaghetti Squash Bake

Craving a juicy burger? Try making this delicious cheeseburger spaghetti squash casserole instead! It’s a perfect low-carb dish with all of your favorite burger toppings.

Prep: 30Cook: 60Total: 1 hour 30 minutes
Yield 1,675g total 186g per serving 1x
Print Pin it Rate

Ingredients

  • 950g cooked spaghetti squash, about 1 large spaghetti squash
  • 1 tbsp olive oil
  • 1/2 yellow onion, diced
  • 1lb ground turkey (93/7) – can sub ground beef.
  • 1 tsp salt
  • 1/2 tsp pepper
  • 2 cloves garlic, minced
  • 1/2 cup ketchup
  • 1/4 cup mustard
  • 1/4 cup nonfat plain greek yogurt
  • 1/2 cup chopped pickles
  • 1 cup lite cheddar cheese
  • 3 eggs

Instructions

  1. Preheat oven to 400F and grease 9×9 baking dish.
  2. Cook spaghetti squash however you prefer. I have a method that I use here.
  3. Scoop out all spaghetti squash strands and place in a large bowl.
  4. In a saute pan, heat olive oil. Add onion and cook about 2 minutes. Add ground turkey, salt, pepper, and minced garlic and cook until no longer pink. Turn off heat and add to bowl with spaghetti squash.
  5. In a small bowl, mix together ketchup, mustard, greek yogurt, and pickles. Pour into bowl with spaghetti squash and turkey.
  6. Whisk three eggs in leftover sauce bowl, then add to spaghetti squash mixture.
  7. Add half of the cheese into spaghetti squash mixture and then stir up the entire mixture very well so everything is very well combined and mixed together.
  8. Pour into greased dish and top with remaining cheddar cheese.
  9. Bake for 1 hour. Let cool 15 minutes before serving.
Author: ErinCategory: dinner, lunch, meal-prep, gluten-freeMethod: ovenCuisine: AmericanDiet: Gluten Free
sticking fork into spaghetti squash cheeseburger bake

Did you make this?

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There may be affiliate links in this post! By purchasing a product I recommend, I may receive a small compensation. However, I only recommend products I absolutely love and use myself. Thank you for supporting Erin Lives Whole, it helps keep this blog afloat 🙂

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Recipe rating ★☆ ★☆ ★☆ ★☆ ★☆

  1. Alicia says

    Posted on 3/25 at 1:02 pm

    Always trying to find ways to get my kids to eat squash. Everyone loves this!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/25 at 8:55 pm

      Hi Alicia, so glad it was such a hit!!

      Reply
  2. shelby says

    Posted on 3/25 at 10:13 am

    Great recipe for the whole family, especially my toddler! Was unsure about the casserole concept but glad I gave it a try. Will definitely make again.

    ★★★★★

    Reply
    • Erin says

      Posted on 3/25 at 8:52 pm

      Hi Shelby, so happy everyone loved it so much!! 🙂

      Reply
  3. Carrie says

    Posted on 3/22 at 10:30 am

    Delicious use of spaghetti squash. Tastes so much like a cheeseburger. I passed this recipe on to a friend who loves it as well. Highly recommend trying it.

    ★★★★★

    Reply
    • Erin says

      Posted on 3/22 at 5:39 pm

      Hi Carrie, so happy you loved it!!

      Reply
  4. Alyssa says

    Posted on 3/21 at 11:10 pm

    Delicious! Will definitely be making again!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/22 at 5:35 pm

      Hi Alyssa, so happy you loved it!!

      Reply
  5. Allison says

    Posted on 3/21 at 8:29 pm

    We LOVE this recipe! It’s seriously so good and maybe even better the next day for leftovers. It’s in our rotation of recipes now. Only advice is to look ahead at recipe bc there is quite a bit of cook time but don’t let that deter you!!!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/22 at 5:33 pm

      Hi Allison, so so glad you liked it!!

      Reply
  6. Eliza says

    Posted on 3/14 at 8:26 pm

    Another amazing ELW recipe! So unique, creative, filling and tasty!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/15 at 3:07 pm

      Hi Eliza, so glad you loved it!!

      Reply
  7. Katie says

    Posted on 3/14 at 11:54 am

    I put off making this because I was intimidated by the spaghetti squash. It will now in rotation for our weeknight meals! It was easy to prep the spaghetti squash and turkey the night before and mix it all together when I was ready to bake. I love how unique this dish is but also comforting!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/14 at 3:42 pm

      Hi Katie, so happy you tried and loved it so much! 🙂

      Reply
  8. Brooke says

    Posted on 3/13 at 6:45 pm

    A really good casserole. Takes a big of time to prepare but it does have the perfect cheeseburger flavour

    ★★★★★

    Reply
    • Erin says

      Posted on 3/14 at 3:37 pm

      Hi Brooke, so glad you loved it!

      Reply
  9. Lacey says

    Posted on 3/9 at 4:45 pm

    This was so good! The hubs agreed! I will definitely be making this again!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/10 at 3:42 pm

      Hi Lacey, so glad you both enjoyed it!!

      Reply
  10. Hannah says

    Posted on 3/9 at 1:51 pm

    Omg this is SO GOOD! I’m not a huge mustard fan and this sounded like an interesting (but could be really weird) recipe…so glad we gave it a try. We’ve already eaten the whole casserole and it’s definitely added to our “must repeat” list

    ★★★★★

    Reply
    • Erin says

      Posted on 3/9 at 3:35 pm

      Hi Hannah, so glad you loved it!

      Reply
  11. Clare says

    Posted on 3/8 at 12:44 pm

    Such a great way to use spaghetti squash!! I think it is the sauce mixture that really makes it so great. I actually subbed lentils and mushrooms for the ground turkey, and this recipe still came out perfect!!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/8 at 3:05 pm

      Hi Clare, so glad you loved it and made it your own!!

      Reply
  12. Kelly says

    Posted on 3/8 at 5:31 am

    This went together easy and the directions were easy to follow. The taste is off the charts. My picky child that said she doesn’t like cheeseburgers ate 3 servings!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/8 at 3:03 pm

      Hi Kelly, so happy you both loved it! 🙂

      Reply
  13. Nicole says

    Posted on 3/6 at 11:19 am

    I have wanted to try this since I first saw it and I kept putting it off because cooking intimidates me 😂 but I am so happy I made it because it was easy and tastes DELICIOUS! Really tastes like a cheeseburger and felt pretty filling for the low macros per serving (type 1 diabetic with celiac so I have to pay attention to everything I eat haha) Will be making this regularly, thanks so much Erin!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/7 at 3:03 pm

      Hi Nicole, so happy you loved this so much! Thanks for sharing!

      Reply
    • Aimee says

      Posted on 10/20 at 2:48 pm

      I make spaghetti squash multiple ways every fall and decided to try this out of curiosity. I made it exact to the recipe. The eggs added a weird texture that I don’t have in other spaghetti squash casseroles, so I recommend omitting them.

      ★★★★

      Reply
      • Erin says

        Posted on 10/21 at 6:22 pm

        Hi Aimee, so glad you liked it!

  14. Ellie Rittenhouse says

    Posted on 3/1 at 11:19 am

    Ok this is so delish. Used ground chicken and tbh I halved the cheese (🤫) and it was AWSOME. 20 yo son loved it and he hates when we lean “healthy” and two 50 somethings all LOVED. Make it!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/1 at 3:38 pm

      Hi Ellie, so glad everyone enjoyed it!!

      Reply
  15. Maureen says

    Posted on 2/28 at 6:57 pm

    Holy YUM! This was delish. Hubs couldn’t stop eating it! Definitely a “keeper”.

    ★★★★★

    Reply
    • Erin says

      Posted on 3/1 at 3:34 pm

      Hi Maureen, so glad you both loved it!!

      Reply
    • Laura says

      Posted on 3/20 at 12:28 am

      This recipe will be on my rotation of dinner recipes for sure! So delicious and filling!

      ★★★★★

      Reply
      • Erin says

        Posted on 3/21 at 1:42 pm

        Hi Laura, so happy you loved it!

  16. Casey Colodny says

    Posted on 2/28 at 3:55 pm

    Such an easy and delicious way to add extra veggies to your diet!! YUM!

    ★★★★★

    Reply
    • Erin says

      Posted on 3/1 at 3:31 pm

      Hi Casey, so glad you loved it!

      Reply
  17. Rebecca says

    Posted on 2/27 at 7:51 pm

    This is SO good!! This dish is so simple but has great flavor – will definitely be making this again!

    ★★★★★

    Reply
    • Erin says

      Posted on 2/28 at 1:57 pm

      Hi Rebecca, so happy you loved it!!

      Reply
  18. Sydney says

    Posted on 2/25 at 6:58 pm

    So delicious! Whole family loved including my difficult to please toddler. Thanks Erin!

    Reply
    • Erin says

      Posted on 2/25 at 8:08 pm

      Hi Sydney, so glad you all loved it!!

      Reply
  19. Erin Poynor says

    Posted on 2/24 at 8:18 pm

    This was DELICIOUS. It seriously tastes EXACTLY like a cheeseburger. I will definitely make this again!

    ★★★★★

    Reply
    • Sydney (again) says

      Posted on 2/25 at 6:59 pm

      Ah forgot to rate! 5 stars!

      ★★★★★

      Reply
      • Erin says

        Posted on 2/25 at 8:08 pm

        Thank you!!

    • Erin says

      Posted on 2/25 at 8:06 pm

      Hi Erin, so happy you loved it!! 🙂

      Reply
  20. Alyssa says

    Posted on 2/23 at 9:40 pm

    One of the best recipes to use a spaghetti squash for! The flavor has the perfect cheeseburger taste. My little one devoured it and this is going to be a repeat recipe for us!

    ★★★★★

    Reply
    • Erin says

      Posted on 2/24 at 12:05 pm

      Hi Alyssa, so glad you loved it! 🙂

      Reply
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