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chicken cauliflower rice cheese and mushrooms on a white plate
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4.63 from 8 votes

Keto Chicken & Cauliflower Rice Casserole

This Keto Chicken & Cauliflower Rice Casserole is cheesy, creamy and best of all, it's super easy to put together. Make it ahead of time and bake it off last minute for a quick, low carb weeknight dinner.
Cook Time25 mins
Total Time25 mins
Course: Dinner, Main Course
Cuisine: American
Servings: 8
Calories: 414kcal
Author: Kasey Trenum


  • 3 tbsp butter
  • 1 cup chopped baby bella mushrooms
  • ½ small onion chopped
  • 2 celery ribs chopped
  • 2 12 oz packages steamed cauliflower rice
  • 1 ¾ tsp poultry seasoning
  • 1 tsp garlic powder
  • 1 tsp parsley
  • ¼ tsp paprika
  • 1 ¼ salt
  • ¼ pepper
  • 1 ⅔ cups chicken broth
  • ¾ cup heavy cream
  • 3 oz cream cheese softened
  • 1 tbsp sour cream
  • 4 oz gouda
  • 6 oz medium cheddar
  • 1 ¾ lbs boneless skinless chicken breasts
  • tsp xanthan gum
  • Parsley for garnish


  • Cook the boneless skinless chicken breasts in a crockpot on low for 4-5 hours or high 2-3 hours then shred.
  • Preheat oven to 375° F.
  • Melt 2 tbsp butter in a 12-inch oven-safe skillet and add the mushrooms, onions, celery, and spices. Sauté for 5 min on medium heat.
    Meanwhile, steam the cauliflower rice in the microwave.
  • Add steamed cauliflower and 1 more tbsp butter in the skillet and sauté for 7 min.
  • Add the chicken broth, heavy cream, sour cream, softened cream cheese, ¾ of the gouda, and ½ of the cheddar cheese, and bring to a boil over medium heat for 8 min with the lid off.
  • Add ⅛ tsp xanthan gum simmer for 5 min or until it thickens then add chicken and stir to combine. (If it gets too thick, you can add more chicken broth.)
  • Sprinkle the remaining cheeses on top and pop the skillet in the oven until melted.
  • Sprinkle parsley on top and enjoy!



The nutritional information provided is per serving based on 8 equal-sized servings. 
*The cook time does not include the additional time it takes to prepare your shredded chicken.


Calories: 414kcal | Carbohydrates: 4g | Protein: 32g | Fat: 30g | Saturated Fat: 18g | Cholesterol: 156mg | Sodium: 688mg | Potassium: 531mg | Fiber: 1g | Sugar: 1g | Vitamin A: 983IU | Vitamin C: 5mg | Calcium: 296mg | Iron: 1mg