This mouthwatering Buffalo Chicken Casserole recipe is not only delicious but also low carb, making it the perfect guilt-free comfort food. By swapping traditional rice or pasta with riced cauliflower, you get a hearty and wholesome keto casserole dish that's both easy to make and a fantastic way to use up leftover chicken.

Overhead image of buffalo chicken casserole garnished with two jalapeno pepper slices and side of avocado.

Low carb and keto friendly: this creamy buffalo chicken casserole has only 6 net carbs per serving, making it perfect for those following low carb or keto diets.

Meal prep: this casserole dish can be made ahead of and reheated for an easy dinner recipe on busy weeknights.

Easy recipe: made with simple ingredients, this is an awesome recipe the whole family can enjoy.

🥘 Ingredients

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Onion

Jalapeno:optional, but I love the flavor of jalapeno so added it to my recipe.

Mushrooms: these are chopped into bite sized pieces

Cauliflower: I buy the whole head and chop it into cauliflower rice size pieces.

Chicken: i like to use shredded chicken from my Air Fryer Rotisserie Chicken recipe.

Olive oil: or avocado oil

Cheddar cheese: buy the brick and shred it yourself.

Mayonnaise

Greek yogurt

Large egg

Hot sauce: my fav is Frank's Buffalo Sauce, but I also love Texas Pete's. You can increase or decrease the amount of hot sauce to your own heat preference.

Ranch seasoning: I use a powdered ranch seasoning I bought at Trader Joes. You could use Hidden Valley Ranch dressing dry mix as well.

Cilantro and green onions (optional) for garnish

Ingredients for buffalo chicken casserole recipe.

Egg, mayo, and sour cream in prep bowls.

🔪 How to Make Buffalo Chicken Casserole

Preheat oven to 350 degrees F. Spray an oblong baking dish with cooking spray and set aside.
In a small bowl, whisk together the mayonnaise, yogurt, and large egg. Set aside.
Heat olive oil in a large skillet over medium high heat until hot. Add diced mushrooms, onion, and garlic. Cook and stir for 2 minutes, until vegetables have softened.
Stir riced cauliflower into the skillet and stir to combine. Cook for 3 minutes, until cauliflower has begun to soften. Remove the skillet from the burner and set aside to cool for 5 minutes.
Add the hot sauce, shredded chicken, ranch seasoning, and shredded cheese to the skillet and stir to combine.
Stir in the mayonnaise mixture to combine, then transfer to prepared baking dish. Sprinkle with 2 ounces shredded cheese.
Bake for 30 minutes, until cheese has melted on top and edges of the casserole are golden brown. Cool for 10 minutes before serving.

Mushrooms, peppers, and onions cooking in a stainless steel skillet.

🥄 Equipment

Oblong baking dish

Large skillet

Large bowl

Small bowl

Cutting board

Chef knife

🥫Storage

Refrigerate: store leftover casserole in an airtight container up to 4 days.

Reheat: warm leftovers in the microwave until heated through.

Unbaked casserole mixture in baking dish before adding cheese.

Unbaked casserole topped with shredded cheese.

📖 Variations

Here are a few different ways you may like to change up your own casserole recipe:

Veggie Power: Mix in some diced bell peppers, onions, or broccoli for extra nutrients and crunch.

Cheese Choices: Experiment with different cheeses like shredded mozzarella cheese or pepper jack cheese.

Topping Twist: For added texture, sprinkle crushed pork rinds or almond flour on top before baking.

Baked Buffalo Chicken Casserole in dish.

💭 Tips

This is a great recipe for leftover cooked chicken breasts, rotisserie chicken, or even canned chicken.
Blue cheese fans can garnish the casserole with blue cheese crumbles.
Cream cheese and sour cream can be substituted for the mayonnaise and greek yogurt.
Frozen cauliflower rice can be substituted for the cauliflower. (I love Trader Joe's frozen cauliflower rice!)
This recipe can double as an easy buffalo chicken dip! Just serve with tortilla chips, celery, or carrot sticks.

Baked keto buffalo chicken casserole with servings removed from the dish.

🙋 FAQ's

Can I make this buffalo chicken casserole recipe ahead of time?

Absolutely! You can prepare the casserole ahead of time, cover it tightly with plastic wrap, and store it in the refrigerator. When ready to bake, simply remove the plastic wrap and follow the baking instructions.

Is this casserole freezer-friendly?

Yes, you can freeze this casserole! After assembling, cover it well with foil or plastic wrap and freeze for up to 2-3 months. Thaw it in the refrigerator overnight before baking.

Can I use different protein sources?

Yes, While this recipe uses chicken, you can experiment with shredded turkey, ground chicken, or even cooked ground beef for a buffalo twist on a classic.

One serving of buffalo chicken casserole on a white plate.

📚 Related Recipes

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This recipe uses the air fryer to make buffalo chicken wings.

This Buffalo Chicken Salad bowl is one of my favorite easy weeknight dinner recipes.

I absolutely adore these Buffalo Cauliflower Tacos!

Buffalo Chicken Stuffed Mushrooms are another great way to enjoy buffalo flavors!

🍽 Serve with..

Serve with a side of avocado slices, topped with cilantro, green onions, or bleu cheese crumbles.

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📖 Recipe