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Easy Chicken Florentine Casserole – Gluten Free

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Additional Info

Net Carbs: 3 g | % Carbs: 3.1 % | % Protein: 22.7 % | % Fat: 74.2 % | SmartPoints: 13
Values 
Array
(
    [serving_size] => 190
    [calories] => 401
    [carbohydrates] => 4.2
    [protein] => 21.6
    [fat] => 31.4
    [saturated_fat] => 10.9
    [cholesterol] => 90
    [sodium] => 406
    [fiber] => 1.2
    [serving_unit] => g
)
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This easy chicken florentine casserole is quick and easy to prepare. It’s a creamy blend of cut chicken, spinach and Parmesan cheese. 

easy chicken florentine casserole

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I’ve been away this week on a business trip this week. I was lucky enough to get a hotel suite that has a full kitchen including stove with oven, full refrigerator and dishwasher.

I booked a one bedroom suite, but those must have gotten overbooked because I ended up in a two bedroom suite. I’m not big into eating out at restaurants, even though the company I work for is paying for my meals while I’m away from home.

I prefer eating meals that I prepare because I know exactly what’s in it. So, it was a real treat having the bigger suite with an oven in the kitchen.

step by step recipe images

Casseroles are simple to prepare. They can easily be thrown together on the spur of the moment as long as you have the basic ingredients.

Since I was cooking away from home, I needed a simple recipe that was going to be quick and easy. For this chicken Florentine casserole recipe, I only needed to buy five ingredients plus a cheap baking pan at the local grocery store near the hotel.

baking casserole

The casserole was enough to feed me for two large double serving dinners and one single serving lunch. This is the first time I’ve ever made this chicken casserole and you can bet that I will be making it again.

You will need some cooked chicken. I ended up poaching some chicken breasts. But, you can simply use leftover chicken in this casserole.

Either fresh or frozen spinach can be used, too. I usually keep frozen spinach in the freezer so it’s usually on hand for me.

The sauce is made with sour cream and mayonnaise. I used store bought mayo. However, homemade is a great option if you have the time to make your own.

I’m a big fan of easy casserole dishes like this chicken Florentine casserole. If you love casseroles too, you may want to check out this post of tasty low carb chicken casserole dishes.

keto chicken florentine casserole

A lot of recipes use condensed cream of mushroom soup as the base for the sauce. We know that this adds unnecessary carbs to the dish!

For those who don’t care for mayonnaise, you could make the sauce using a thickened heavy cream instead. You may want to change up the seasoning as well to suit your own taste. I also think adding some bacon would make this dish a bit more delicious.

Other ideas to add to this basic chicken Florentine recipe are mushrooms and mozzarella cheese. Rather than use all Parmesan cheese for the topping, a mix of cheese would be a nice change.

Easy Chicken Florentine Casserole Recipe

chicken florentine casserole serving on plate

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Chicken Florentine Casserole

Easy Chicken Florentine Casserole

Author: Lisa MarcAurele
4.34 from 27 votes
This low carb gluten free chicken casserole is quick and easy to prepare. It’s a creamy blend of cut chicken, spinach and Parmesan cheese.

Recipe Video (Click on Image to Play)

Prep Time10 mins
Cook Time45 mins
Total Time55 mins
Course: Main Course
Cuisine: American
Print Pin Review Recipe
Servings 5 people
Calories 401

Ingredients

  • 2 skinless boneless chicken breast halves
  • 10 oz frozen spinach thawed and drained
  • 1 cup mayonnaise
  • 1 cup parmesan cheese
  • ¾ cup sour cream
US Customary – Metric

Instructions

  • Poach chicken in boiling water until no longer pink. Remove from water and let cool. Cut chicken into bite size pieces.
  • In small bowl, mix Parmesan, mayonnaise and sour cream together.
  • Combine chicken and spinach in the bottom of a casserole pan. Spread cheese mixture on top.
  • Bake uncovered in 350°F oven for 35 minutes or until edges are browned.

Low Carb Sweeteners | Keto Sweetener Conversion Chart

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Nutrition

Serving: 190g | Calories: 401 | Carbohydrates: 4.2g | Protein: 21.6g | Fat: 31.4g | Saturated Fat: 10.9g | Cholesterol: 90mg | Sodium: 406mg | Fiber: 1.2g

Additional Info

Net Carbs: 3 g | % Carbs: 3.1 % | % Protein: 22.7 % | % Fat: 74.2 % | SmartPoints: 13
Values 
Array
(
    [serving_size] => 190
    [calories] => 401
    [carbohydrates] => 4.2
    [protein] => 21.6
    [fat] => 31.4
    [saturated_fat] => 10.9
    [cholesterol] => 90
    [sodium] => 406
    [fiber] => 1.2
    [serving_unit] => g
)

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Note on Nutritional Information

Nutritional information for the recipe is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs are not included in carb counts as it has been shown not to impact blood sugar. Net carbs are the total carbs minus fiber.

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Unauthorized use of this material without written permission from Lisa MarcAurele is strictly prohibited unless for personal offline purposes.
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Lisa MarcAurele has been creating keto friendly recipes since 2010. She enjoys experimenting in the kitchen to create low sugar foods that taste like high carb favorites!

Lisa's recipes have been featured on popular magazine sites including Fitness, Shape, Country Living, Women's Health, and Men's Health. Her long-awaited cookbook, 5-Ingredient Keto, is also a popular go-to for those on a low-carb lifestyle. Learn more about Lisa....

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    Recipe Rating




    1 2

  1. Bumbershoot

    This casserole was quite good. My husband, who suggested low carb, was very satisfied with it. I did add salt, pepper, and garlic powder so it wouldn’t be bland.
    I needed a lot of food, so I doubled the amounts of chicken and spinach, and used 1.5 times mayo and cheese, and one cup of sour cream. That was plenty. I’m afraid that if I doubled the sauce, it would have drowned the chicken and spinach.
    Minor nitpick: Whoever decided prep time would be 10 minutes must have a sous chef, or just didn’t include the time needed to cook the chicken and thaw and drain frozen spinach.
    It took me more like 30 minutes.

    Reply

    • Lisa MarcAurele

      Thanks for the feedback on prep time. It typically takes about ten minutes to poach the chicken so that cook time has been accounted for in the cooking time.

      Reply

  2. Uncle Phil

    5 stars
    Awesome!!

    Reply

  3. Sandy

    5 stars
    I served this for dinner to non-keto guests, and they absolutely loved it. I put theirs over fettucine noodles

    Reply

  4. Maura

    4 stars
    This was delicious. My only problem was it was so wet. Anyone know why?

    Reply

    • Lisa MarcAurele

      The spinach should be drained and squeezed of most of the liquid. Maybe that was it?

      Reply

  5. Amy Boggs

    I made this last night and it was delish!

    Reply

  6. Sara

    Is it necessary to broil the chicken at all? Could I just bake it in the oven for the 35 mins you think? thanks

    Reply

    • Lisa MarcAurele

      I’ve always cooked the chicken first. Might need to cover and cook longer if the chicken is raw.

      Reply

  7. Casey

    I substituted plain yogurt for sour cream and topped it with 1/4 cup shredded mozzarella and sprinkled with bacon bits. Absolutely fabulous. Will make it again!

    Reply

    • Lisa MarcAurele

      That does sound fabulous!

      Reply

  8. Heather

    5 stars
    I didn’t have any sour cream so I used cream cheese instead. Also I used fresh spinach & left over rotisserie chicken. My husband loved it! I served this dish w/fresh sliced tomatoes. Yummm

    Reply

    • Lisa MarcAurele

      Thanks for sharing your version! Cream cheese is a great sub for sour cream.

      Reply

      • TAMARA

        CAN I USE CREAM CHEESE INSTEAD OF CREAM OF MUSHROOM SOUP? IF SO 4OZ OR THE WHOLE 8 OZ?

      • Lisa MarcAurele

        There’s no cream of mushroom soup called for. Are you wanting to sub out the sour cream?

      • Debbi Wagers

        If using fresh spinach how much should you cook up?

      • Lisa MarcAurele

        You can use the same amount, about 10 ounces.

  9. Emily Parker

    5 stars
    Will this freeze well?

    Reply

    • Lisa

      It should based on the ingredients.

      Reply

  10. Michelle

    5 stars
    Yummy! I added the mozzarella on top too. It was a hit for the whole family.

    Reply

    • Lisa

      Thanks for letting us know it was a hit!

      Reply

  11. Michelle

    5 stars
    This sounds amazing. Is there any way to substitute the sour cream? I just don’t have any on hand at the moment

    Reply

    • Lisa

      You can use yogurt or add a thickener to heavy cream.

      Reply

  12. Emma Chatman

    I just made this and it was delicious. I added heavy whipping cream and asparagus. Will definitely make again

    Reply

  13. Chelsea Oliveiral

    4 stars
    I want to know if you can substitute the sour cream with plain Greek yogurt?

    Reply

    • Lisa

      I haven’t tried it, but it’s usually a one-for-one substitute so it should work out okay.

      Reply

  14. Pam

    5 stars
    This was delicious! I’m fairly new to Keto and seem to pick recipes that, well, that I don’t like. But this is excellent! And I’ll be making it regularly, especially when there are lots of turkey leftovers! I added sliced mushrooms, used heavy cream instead of mayonnaise and sprinkled grated mozzarella cheese on top for the last 10 minutes.
    My husband loved it! Thank you for restoring my commitment to eating Keto.

    Reply

  15. Glenda

    This smells Wonderful!!!
    CAN’T wait to try it.l didn’t change a thing. Going to try more of your recipes. THANKS

    Reply

    • Lisa

      Enjoy! 🙂

      Reply

  16. Tammy

    I have made this 3 times, it is a delicious dish.
    Thanks for sharing!

    Reply

    • Lisa

      You’re welcome! It was one of my go-to recipes when I returned low carb.

      Reply

  17. Linda V

    Would love to have any low carb recipes. I have a real problem getting in veggies since I really only care for limas, green beans, lettuce, zucchini, squash. I like soft onions – just don’t like crunch. Love your ideas.

    Reply

    • Lisa

      There’s so many ways to enjoy low carb veggies! Have you tried them as fries? Zucchini fries are delicious!

      Reply

    • Linda

      4 stars
      Please send me the crunch! I like thin sliced raw or browned and crispy but soft cooked? Not me. Hubby says he thinks I was a horse in a former life! Different strokes?

      Reply

  18. Elsa

    5 stars
    Made this today and it was delicious. I did add broccoli cuts to it though and more cheese because, can you ever have enough cheese?

    Reply

    • Lisa

      The more cheese the better!

      Reply
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