Keto Chicken and Mushroom Casserole

Keto Chicken and Mushroom Casserole is a perfect low carb meal made quickly and easily in one pan! 

Creamy chicken and mushrooms go so well together. Add some fresh herbs and made in just one pan and you’ve got yourself and quick and easy keto meal for any busy weeknight made in 30 minutes. We eat chicken a few times a week in our home, because it’s a cost effective meal and there are so many varieties and options. Sometimes it can can boring if you constantly make the same recipes with chicken over and over again. So trying some new ideas will chicken will keep your family from complaining. 

One pan meals are the absolute best because you have less to clean up! Using a cast iron skillet will also, in my opinion, yield the tastiest results. A cast iron skillet sears the chicken so well and browns the mushrooms perfectly. Then those little crispy bits made when searing the chicken will be scraped up nicely with the chicken stock to deglaze the pan. You can use cast iron skillets for desserts too like my Chocolate Chip Skillet Cookie Pie!  

If you’re in need of something delicious but simple using chicken, this recipe is for you! Tons of flavor, little effort, not much but one pan to clean up and a tasty meal everyone will love!

If you love recipes like this for yourself and family, you might be interested in my meal planning membership. Weekly low carb keto dinner meal plan sent to your inbox every Friday with shopping list. The best part about my meal planning feature is that if you aren’t interested in one of the dinner meals you can swap it out for something else! You can even change serving sizes and the shopping list will adjust! It pretty amazing software and I hope you’ll take advantage of it. You can have a sustainable low carb/keto lifestyle when you’re well prepared and planning meals is the key!  LEARN MORE TODAY!

Keto Creamy Chicken and Mushroom Casserole

Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes

Servings 4 servings
Calories 400 kcal
Author Naomi Sherman


  • 1 pound chicken tenderloin
  • 1/2 pound mushrooms thickly sliced
  • 2 tbsp butter
  • 2 tbsp olive oil
  • 2 cloves garlic crushed
  • 1/4 cup fresh parsley chopped
  • 2 tbsp fresh thyme leaves
  • salt and pepper
  • 1/2 cup chicken stock
  • 1/2 cup heavy cream
  • 1/4 cup sour cream


  1. Heat half of the butter and half f the olive oil in a heavy skillet.

  2. Season the chicken tenders and then sear in batches until browned on all sides. Remove from skillet and set aside.

  3. Add the rest of the butter and oil to the skillet and cook the mushrooms until they are browned and crispy.

  4. Add the garlic, herbs and chicken stock and deglaze the pan, scraping all of the good stuff from the bottom of the pan.

  5. Add the cream and sour cream and simmer until sauce starts to thicken. Do not boil, as cream could split.

  6. Return the tenderloins to the pan and toss through the sauce. Cook for five more minutes.

  7. Store, covered, in the refrigerator for up to 5 days.

Recipe Notes

Net Carbs 4g

Nutrition Facts

Keto Creamy Chicken and Mushroom Casserole

Amount Per Serving (1 serving)

Calories 400 Calories from Fat 261

% Daily Value*

Total Fat 29g 45%

Saturated Fat 14g 70%

Cholesterol 96mg 32%

Sodium 242mg 10%

Potassium 693mg 20%

Total Carbohydrates 5g 2%

Dietary Fiber 1g 4%

Sugars 2g

Protein 27g 54%

Vitamin A 15.7%

Vitamin C 16.5%

Calcium 4.4%

Iron 8.9%

* Percent Daily Values are based on a 2000 calorie diet.

Blessings, Brenda

Naomi is the force behind Naomi Sherman | Food Creative. She is passionate about recipe development, food photography and styling. An accomplished home cook who was diagnosed with an auto-immune disease eight years ago, Naomi started to explore the connection between healthy, whole food and her symptoms, and a new love was born. She fiercely believes that what you put in your body is one of the most important factors for your physical, and mental, wellbeing.

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