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Buffalo Chicken Casserole
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4.94 from 48 votes

Buffalo Chicken Casserole

A creamy Buffalo Chicken Casserole that is Whole30, Keto and Paleo compliant. Filled with shredded chicken, mayo, ranch, nutritional yeast, seasoning, green chilies and Franks Hot sauce. A perfect easy and quick weeknight dinner. 
Prep Time5 minutes
Course: Main Dish
Keyword: Buffalo Chicken, Casserole, Dinner, keto, whole30
Servings: 4 -5
Author: Ashley McCrary


  • 2.5 lbs cooked chicken breast 4 1/2 cups, shredded
  • 3 1/2 cups cauliflower rice frozen or raw
  • 1/2 cup Franks Hot Sauce
  • 2 tbsp compliant ranch dressing
  • 1/3 cup compliant mayo
  • 1/2 cup chopped white onion
  • 1/3 cup green chilies or sub chopped banana peppers
  • 1/3 cup chopped green onions
  • Garnish with additional green onions and drizzle with 2 tbsp of ranch and a more hot sauce.


  • 1/2 tsp salt
  • 1 tsp paprika
  • 1/2 tsp pepper
  • 3/4 tsp garlic powder
  • 2 1/2 tbsp nutritional yeast


  • Preheat oven to 350F.
  • Coat a 9X9 or a 9X13 baking dish with olive oil.
  • In a large bowl, add the cauliflower rice, onions, green onions, banana peppers or green chilies, cooked shredded chicken, Franks Red Hot Sauce, mayo, ranch, nutritional yeast and the rest of the seasoning. 
  • Mix all the ingredients together until completely combined. 
  • Transfer the mixture to the baking dish and add to the oven. 
  • Bake for 35-40 minutes or until the top is crispy and bubbling. 
  • Drizzle with ranch, top with fresh chopped green onions and add a little more Franks Hot Sauce to the top.
  • Enjoy!


  • Be sure to check the ingredients for the banana peppers for compliant ingredients. I love buying mine through Thrive Market, which is compliant for the Whole30 program. 
  • You can add in the cauliflower rice in frozen or raw. You do NOT have to cook it before adding it to the oven.
  • This will last in the fridge up to one week and in the freezer for 3 months.