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Home / Recipes / Main Course / Keto Chicken Alfredo Casserole

Keto Chicken Alfredo Casserole

December 29, 2018 by Keto Cooking Christian 14 Comments

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A casserole of chicken, mushrooms and spinach swimming in creamy Alfredo sauce and baked with gooey cheese on top!

closeup of Chicken Alfredo Casserole with spoonful

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All the flavors of Alfredo sauce packed into this chicken alfredo casserole and topped with gooey melted mozzarella cheese!  I add in fresh baby bella mushrooms and spinach to make this dish a complete  meal with a huge boost of potassium!

Chicken Alfredo Casserole - Keto and Low Carb

It's loaded with healthy fats from the heavy cream, grass-fed butter, mascarpone cheese and fresh grated parmesan.

Chicken Alfredo Casserole - Keto and Low Carb

 This is a super easy Low Carb casserole that you will find yourself making again and again!  One great thing about Keto and Low Carb casseroles is they typically make a lot of servings and are perfect for meal prepping!  

When you include healthy fats and veggies in them, they are really a complete meal, which makes them even better!

What's in Low Carb Chicken Alfredo

  • Chicken breasts
  • Baby bella mushrooms
  • Frozen spinach
  • Heavy cream
  • Mozzarella cheese
  • Mascarpone cheese
  • Parmesan cheese
  • Grass-fed butter
  • Chicken stock
  • Olive oil
  • Garlic clove
  • Salt
  • Fresh parsley
  • Pepper

*Exact measurements are listed in the recipe card below.

How to Make Keto Chicken Alfredo Casserole

Preheat oven to 400F.

Add 1 tablespoon of butter and 1 tablespoon of olive oil to a saucepan over medium heat.  Add  in the mushrooms and sauté for a few minutes until they have some good color.

Chicken Alfredo Casserole - Keto and Low Carb

Remove and add a little more butter to the pan, then sauté the garlic for about 20 seconds, careful not to burn it!

Chicken Alfredo Casserole - Keto and Low Carb

Add in the rest of the butter, chicken stock, heavy cream, mascarpone cheese, salt and pepper and stir until melted.  Add in the parmesan cheese and parsley, continue stirring until everything has melted.

Chicken Alfredo Casserole - Keto and Low Carb

In a large mixing bowl, add in the chicken, mushrooms and spinach.

Chicken Alfredo Casserole - Keto and Low Carb

Stir in the 1 cup of the shredded mozzarella cheese.

Chicken Alfredo Casserole - Keto and Low Carb

Pour the sauce over the top and mix to combine.

Chicken Alfredo Casserole - Keto and Low Carb

Pour the mixture into a 9" X 9" casserole or glass baking dish that has been sprayed with nonstick spray.

Chicken Alfredo Casserole - Keto and Low Carb

Spread the mixture evenly and top with the remaining mozzarella cheese and bake for 15 minutes.  Increase the temperature to 425F and bake for another 10 minutes or until the cheese is golden.

Allow to cool slightly before serving.  Due to the amount of healthy fats in this casserole, I recommend having small portions with a side salad to lighten things up a little.

Chicken Alfredo Casserole - Keto and Low Carb

Store leftovers in the fridge for a few days or freeze.

Chicken Alfredo Casserole - Keto and Low Carb

More easy Keto and Low Carb Casseroles

  • Spinach Artichoke Casserole
  • Chicken Parmesan Casserole
  • Easy Taco Casserole
  • Chicken Pot Pie Casserole
  • Loaded Creamy Cauliflower Casserole
  • Chicken Cordon Bleu Casserole
  • Easy Sausage & Pepper Casserole
  • Bacon Cheeseburger Casserole
  • Chicken Florentine Casserole
PIN Chicken Alfredo Casserole

Shop  my favorite products on Amazon  and check out my Keto Pantry List!

Keto Chicken Alfredo Casserole being spooned out of the dish

Keto Chicken Alfredo Casserole

A casserole of chicken, mushrooms and spinach swimming in creamy Alfredo sauce and baked with gooey cheese on top!
5 from 5 votes
Print Save Saved! Review
Prep Time 10 mins
Cook Time 25 mins
Total Time 35 mins
Author: Julianne
Course: Main Course
Calories: 603
Servings: 8

INGREDIENTS

  • 16 ounces chicken breast, shredded
  • 8 ounces baby bella mushrooms, sliced
  • 9 ounces frozen spinach, thawed and well drained
  • 2 ½ cups shredded mozzarella cheese
  • 1 cup Heavy Cream
  • 1 ¼ cups Mascarpone Cheese
  • 1 ½ cups parmesan cheese, grated
  • 4 tablespoons grass-fed butter, divided
  • ¼ cup chicken stock
  • 1 tablespoon olive oil
  • 3 cloves garlic
  • ½ teaspoon salt
  • 1 tablespoon fresh parsley, chopped
  • ¼ teaspoon ground pepper

INSTRUCTIONS

  • Preheat oven to 400F. Add 1 tablespoon of butter and 1 tablespoon of olive oil to a saucepan over medium heat. Add in the mushrooms and sauté for a few minutes until they have some good color.
  • Remove and add a little more butter to the pan, then sauté the garlic for about 20 seconds, careful not to burn it!
  • Add in the rest of the butter, chicken stock, heavy cream, mascarpone cheese, salt and pepper and stir until melted.  Add in the parmesan cheese and parsley, continue stirring until everything has melted.  In a large mixing bowl, add in the chicken, mushrooms and spinach.
  • Stir in the 1 cup of the shredded mozzarella cheese. Pour the sauce over the top and mix to combine.  Pour the mixture into a 9" X 9" casserole or glass baking dish that has been sprayed with nonstick spray.  
  • Spread the mixture evenly and top with the remaining mozzarella cheese and bake for 15 minutes. Increase the temperature to 425F and bake for another 10 minutes or until the cheese is golden.
  • Allow to cool slightly before serving.  Due to the amount of healthy fats in this casserole, I recommend having small portions with a side salad to lighten things up a little.  Store leftovers in the fridge for a few days or freeze.

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Nutrition Facts
Keto Chicken Alfredo Casserole
Amount Per Serving
Calories 603 Calories from Fat 513
% Daily Value*
Fat 57g88%
Saturated Fat 32g200%
Carbohydrates 4g1%
Fiber 1g4%
Sugar 1g1%
Protein 29g58%
* Percent Daily Values are based on a 2000 calorie diet.
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*Nutritional data is provided as a courtesy and is accurate to the best of my knowledge. You can verify it using the nutrition calculator of your choice. All data is based on net carbs, without sugar alcohol- Swerve, Erythritol, Allulose, or Monk Fruit. Share on Facebook Share on Twitter

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Filed Under: Casseroles, Chicken, Main Course, Most Popular, Posts, Recipes Tagged With: best keto recipes, best low carb recipes, chicken alfredo casserole, chicken casseroles, easy keto recipes, easy low carb recipes, gluten free recipes, keto, keto casseroles, keto diet, keto recipes, ketogenic diet, low carb casseroles, low carb recipes

Bible verse of the day

Thou art my hiding place; thou shalt preserve me from trouble; thou shalt compass me about with songs of deliverance. Selah
Psalm 32:7
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14 Comments
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Lisa
November 27, 2020 3:57 pm

That looks delicious! Always appreciate your verses.❤️

Reply
Author
Keto Cooking Christian
December 8, 2020 12:47 pm
Reply to  Lisa

Thanks so much!

Reply
Angeline
July 29, 2020 8:16 pm

5 stars
Great recipe! I’ve made this a few times and I love it!
Thank You!

Reply
Author
Keto Cooking Christian
August 5, 2020 11:49 am
Reply to  Angeline

Awesome!

Reply
Dawn
May 1, 2020 7:30 pm

5 stars
This was so good. I don't like mushrooms so I added broccoli for added veggies. I also topped it with a "breadcrumb" topping. I had a failed Keto Naan Bread that I crumbled and used 2 cups with 4 T of melted butter. It reminded me of a Ritz cracker topping. So good.

Reply
Author
Keto Cooking Christian
May 2, 2020 4:12 pm
Reply to  Dawn

Sounds great, glad you enjoyed it!

Reply
Bettina Wilson
November 29, 2019 2:06 pm

5 stars
My family loved this. Can this be freezed?

Reply
Author
Keto Cooking Christian
November 29, 2019 4:28 pm
Reply to  Bettina Wilson

Yes, it absolutely can! Glad your family loved it 🙂

Reply
Sue Roberds
November 3, 2019 8:57 pm

5 stars
This is a delicious recipe, but mine turned out very runny. Any suggestions?

Reply
Author
Keto Cooking Christian
November 5, 2019 5:55 pm
Reply to  Sue Roberds

Sorry to hear that, not sure why that might happen honestly.

Reply
Sharla Clark
July 13, 2019 12:41 pm

What did you use for the chicken breast? Canned chicken? Rotisserie? Cook/boil your own??

Reply
Author
Keto Cooking Christian
July 13, 2019 12:47 pm
Reply to  Sharla Clark

I used rotisserie, but you can use bake or poach your own if you'd like.

Reply
Darcie F
January 10, 2019 4:59 pm

5 stars
Alfredo sauce is to die for! Such wonderful flavor and heats up beautifully

Reply
Keto Cooking Christian
January 10, 2019 5:34 pm
Reply to  Darcie F

Aww, thanks so much! I'm glad you enjoyed it 🙂

Reply

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Keto Cooking Christian

I'm Julianne, welcome!  Eating healthy doesn't mean you have to sacrifice great flavor.  I offer tasty and indulgent Keto & Low Carb recipes that will never leave you feeling deprived! More about me...

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