Buffalo Chicken Spaghetti Squash Casserole (Gluten Free, Whole 30, Paleo, Keto)

(Last Updated On: August 12, 2020)

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Buffalo Chicken Spaghetti Squash Casserole

This Buffalo Chicken Spaghetti Squash Casserole combines two of my favorite things, buffalo chicken and casseroles. This recipe is Paleo, Whole 30 & Low carb/Keto Friendly. Its an easy meal that you can make ahead during meal prep, or if you make the ingredients ahead of time, toss together the same day. To make your meal prep easier, you can cook the Spaghetti Squash in 8 minutes in the Instant Pot and cook the try my 10 Minute Shredded Chicken Instant Pot Recipes. 

Whole 30 Buffalo Chicken Spaghetti Squash Casserole Up Close

I Put That S*&T On Everything!

I love those commercials for Franks Red Hot with the little old ladies cursing. Mostly I think cause I hope to be one of those old ladies, but also because I genuinely could put that shit on everything. Growing up I hated spicy foods, I mean black pepper was too spicy kind of hatred. Now I love buffalo flavored everything. If you feel me on your love of all things buffalo, try my Buffalo Chicken Meatballs, Buffalo Chicken Salad, and Sriracha Honey Shrimp, which is close enough to buffalo if we’re being honest. Check out even MORE Buffalo recipes at the bottom of the page. 

Casserole To The Rescue

I love a good casserole for a couple of reasons. Firstly, they remind me of being a kid. With both my parents working, juggling all of our activities, and busy social schedules, casseroles were an easy dinner to make, so we had them often. Secondly, they are great for meal prep. You can prepare everything early in the week, then pop it in the oven. If you don’t want to make the whole thing, you can at least prepare some or most of the ingredients, then you just mix them together and then toss in the oven. For this recipe, you can make use my 10 minute shredded chicken recipe and Instant Pot Spaghetti Squash to make ahead. The other main reason I love casseroles is they are easy to freeze, so you can always double the recipe, follow everything until you bake it, then pop it in the freezer. and then have another meal ready to go a few weeks later. 

Shredded Chicken in a mixing bowl with buffalo sauce

What are the Ingredients

  • Spaghetti Squash
  • Shredded Chicken
  • Buffalo Sauce *See more below on what makes this Whole 30/Keto
  • Ranch Dressing
  • Green Onions 

Yup That’s It! NO 20 ingredient list over here 🙂 

How Do I Make It?

  • Cook Chicken and Spaghetti Squash
  • Combine all ingredients in a bowl
  • Transfer to a Casserole dish and Bake! 

I told you it was easy, did you not believe me?! 


whole 30 keto paleo casserole buffalo chicken

What Makes It Whole 30, Paleo & Keto?

Whole 30 & Paleo are extremely similar lifestyles, focusing on eating whole, unprocessed foods. So we left out gluten and dairy for this recipe. Make sure you’re hot sauce is compliant, Franks Red Hot is compliant, and I absolutely love the new primal which is a Whole 30/Paleo approved buffalo sauce, you can order here. ALOT of ranch and dressings will not be Whole 30 or Paleo ingredients like hydrogenated oil, dairy, and all kinds of things you can’t pronounce, keep them off the approved list, so make sure you use an approved brand I love Primal Kitchen, you can order here

Keto is a different story, Keto is about counting the number of carbs you eat in a day. But this is a low carb dish so it can be Keto friendly as long as you portion it correctly. One cup of spaghetti squash has about 7G of Carbs, but 2G of fiber, so approximately 5 Net Carbs. Because there is Chicken mixed within the spaghetti squash, one cup of the casserole will be less than 7 carbs, so you can enjoy more as long as your daily carbs allow. The Chicken has no carbs, and while a lot of dressings contain sugars and can be high in carbs, Primal Kitchen Ranch has less than 2 net carbs per serving. Since dairy is allowed on Keto, if you want to add a cup of shredded mozzarella, it can put this dish over the edge with the cheesy goodness without adding carbs. 

Helpful Equipment & Ingredients (Directly from Amazon)

2 QT Casserole Dish with Handles
2 QT Pyrex with Large Handles UNDER $15
Pyrex Glass Mixing Bowls
Pyrex Glass Mixing Bowls Under $10
primal kitchen buffalo sauce
Primal Kitchen Whole 30/Paleo Buffalo Sauce
Primal Kitchen Whole 30 Ranch
Primal Kitchen Ranch

Helpful Video How to Cut Spaghetti Squash Without a Knife!

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Buffalo Chicken Spaghetti Squash Casserole

Buffalo Chicken Spaghetti Squash Casserole

A Paleo Whole 30 and Low carb friendly casserole that is just 4 ingredients and super easy to make.
Prep Time 10 mins
Cook Time 30 mins
Course Dinner
Cuisine American
Servings 6 people


  • Casserole or baking dish


  • 1.5 Lbs Cooked and Shredded Chicken (see nots above for my 10 minute chicken recipe)
  • 1 Medium-Large Spaghetti Squash cooked, (see notes above for 8 minute spaghetti squash recipe)
  • 1/2 Cup Buffalo Sauce
  • 1/4 Cup Ranch or Cesar dressing (Make sure it's Paleo/Whole 30 Compliant)
  • handful of green onions chopped for a garnish (optional)


  • Preheat oven to 350 degrees. Add the spaghetti squash, chicken, buffalo sauce, and dressing in a mixing bowl. Stir well until it's combined.
  • Bake at 350 for 30 minutes. Top with green onion (optional) Serve hot and enjoy 🙂
Keyword buffalo chicken, casserole, chicken, dinner, low carb, paleo, spaghetti squash, whole 30

Other Buffalo Recipes You'll Also Enjoy

buffalo chicken salad herbs paleo keto whole 30 recipe
Buffalo Chicken Salad
Buffalo Chicken Stuffed Sweet Potatoes
gluten free buffalo chicken tenders
Gluten Free Buffalo Chicken Tenders

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  1. I love this recipe! And squash is one of my all-time favorites in cooking casseroles!

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