Keto Buffalo Chicken Casserole

This KETO BUFFALO CHICKEN CASSEROLE starts off with a cheesy cauliflower base and then gets buffalo chicken stirred right in. We bake this until it’s hot and bubbly and then drizzle with a bit more buffalo sauce and ranch dressing.

buffalo chicken casserole with cauliflower rice in white baking dish

A few of my favorite restaurants have a buffalo chicken mac and cheese on the menu and I have to admit…I want it every time.

I decided to make my own version and I knew just the place to start!

My cauliflower mac and cheese is a favorite here with readers and in my home with family, so I knew it’d be the perfect base for this buffalo chicken casserole.

All the cheesy goodness of mac and cheese, spicy chicken, and a hefty drizzle of keto ranch dressing.

Yes, you can totally use blue cheese, if that’s your thing. I’ll always be TEAM RANCH myself. 😉

close up of buffalo chicken casserole on white plate with vintage fork

How to:

Start with fresh cauliflower. Frozen riced cauliflower may work, but I always recommend using fresh because the flavor and texture are just a million times better.

Chop the cauliflower into small, macaroni-sized pieces.

Boil the cauliflower, drain, and then add in your buffalo sauce, cream, cheese, and seasonings. Stir that up until it’s all melty and irresistible.

cheesy cauliflower in pot

Toss some cooked, chopped or shredded chicken with buffalo sauce and stir that right into the cauliflower.

We like to use a rotisserie chicken to keep this easy.

low carb buffalo chicken casserole in white baking dish

Spread this mixture into a casserole dish and bake until it’s hot and bubbly, about 15 minutes.

We top this off with an extra drizzle of buffalo sauce, ranch or blue cheese dressing, and a sprinkling of green onions.

buffalo chicken and cauliflower casserole on white plate next to a blue striped napkin


Is this keto buffalo chicken casserole spicy?

As written, the recipe definitely has a kick, but it’s still on the mild side.
You can reduce the amount of buffalo sauce used in the cheese sauce or on the chicken to make this more mild.
To make this dish more spicy, use Frank’s Red Hot Sauce instead of buffalo wing sauce or add in a little dried cayenne pepper.

Can I use frozen cauliflower rice instead of fresh?

Probably, but I haven’t tested it. Fresh produce will always taste better and have a better texture than frozen, so I recommend using fresh cauliflower.
Most grocery stores carry already chopped cauliflower in the produce section.

Where are the carbs coming from in this recipe?

Cauliflower, contrary to popular belief, does contain carbs. It also has a lot of fiber to balance it out. The carbs in this recipe come mostly from the cauliflower, but also from the cream and cheese.

buffalo chicken casserole made with cauliflower rice in white baking dish

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white plate with pile of chicken casserole on top
white baking dish with chicken casserole inside topped with bufffalo sauce

Keto Buffalo Chicken Casserole

Yield: 4

Prep Time: 15 minutes

Cook Time: 20 minutes

Total Time: 35 minutes

This buffalo chicken casserole starts off with cheesy cauliflower and then gets a spicy buffalo chicken stirred right in before baking. If you like buffalo chicken, this low carb version will be a big hit!


  • 1 medium head cauliflower
  • ½ cup buffalo sauce, divided
  • ¼ cup heavy cream
  • 2 ounces cream cheese
  • 1 cup grated cheddar cheese
  • ⅓ cup grated monterey jack cheese
  • ½ teaspoon salt
  • ½ teaspoon cracked pepper
  • 2 cups cooked, chopped chicken
  • 2 tablespoons chopped green onions
  • Ranch or blue cheese dressing, for serving


  1. Preheat oven to 350 degrees. Spray a 9×9 baking dish with non-stick spray.
  2. Chop the cauliflower into small pieces, about the size of macaroni noodles.
  3. Bring a pot of water to a boil. Add the cauliflower and boil for 4 minutes.
  4. Drain the water and return the cauliflower to the pot over low heat.
  5. Add ¼ cup of buffalo sauce, cream, cream cheese, cheddar, Monterey jack, salt, and pepper and stir well until the cheese has melted fully, about 3 minutes.
  6. Add the chicken and remaining buffalo sauce to a small bowl and toss to coat. Combine with the cauliflower mixture.
  7. Spread mixture into the prepared baking dish and bake for 15 minutes, or until hot and bubbly.
  8. Sprinkle with green onions and drizzle with ranch or blue cheese dressing before serving. 


I normally purchase already chopped cauliflower in the produce section of the grocery store. A 1 pound bag is perfect for this recipe.

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Nutrition Information

Yield 4 Serving Size 1 1/4 cups
Amount Per Serving Calories 489Total Fat 38gSaturated Fat 17gTrans Fat 1gUnsaturated Fat 17gCholesterol 135mgSodium 1473mgCarbohydrates 10gNet Carbohydrates 6gFiber 4gSugar 5gProtein 29g

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