Chicken Florentine Casserole Bake (5 Ingredients)

Name: Easy Chicken Florentine Casserole Bake
Prep time: 10 min
Cook time: 45 min
Total time: 55 min
Ingredients: 2 skinless boneless chicken breast halves; 10 oz frozen spinach (thawed and drained); 1 cup mayonnaise; 1 cup parmesan cheese; 3/4 cup sour cream

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This easy chicken Florentine casserole bake is quick and simple to prepare. It's a creamy blend of cut chicken, spinach, and parmesan cheese!

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Why you'll love it
Ingredients
Tips
Instructions
????️ Serving suggestions
Variations
FAQs
Related recipes
Recipe

Why you'll love it

Are you a fan of Italian recipes? What about creamy sauces and rich flavors? If so, then this chicken Florentine recipe is something you will love!

This recipe tastes just like a dish prepared by a 5-star chef - but you can make it at home. I prefer eating meals that I prepare because I know exactly what's in them.

This chicken Florentine recipe is so easy to make that you won't have any problems making a scrumptious dinner, even if you are a beginner cook.

Even better, this chicken florentine is a casserole, and 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.

Ingredients

You only need to buy five ingredients for this chicken Florentine casserole recipe, but you may already have everything in your fridge.

Chicken breasts

In order to make a chicken Florentine bake, you obviously need a chicken breast or two.

I ended up poaching some chicken breasts. But, you can simply use leftover seared chicken in this casserole.

It is best to use boneless skinless chicken breasts.

Spinach

Fresh spinach is one of the best vegetables to eat on the keto diet, and luckily, this leafy green veggie is a staple in chicken florentine.

Fresh baby spinach is best, but you can also use frozen spinach. Just remember that frozen spinach will have a different texture than fresh.

I prefer to use fresh spinach because it has a brighter flavor!

Mayonnaise

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.

Parmesan cheese

You'll find that I use parmesan cheese in many of my favorite keto recipes. This is because it gives the recipes a fantastic earthy and nutty undertone.

Sour cream

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! So instead, use full-fat sour cream.

Please note: Check out the recipe card at the bottom for a full list of ingredients used to make this low-carb recipe.

Tips

Bake uncovered. If your stove runs hot, cover the chicken Florentine casserole with foil to prevent the top from burning.
Shred parmesan cheese at home. If you buy pre-shredded parmesan cheese, it will have anti-caking ingredients and hidden carbs in it.
Watch it closely. Since the chicken is already cooked, you only need to heat this up until it is bubbly and hot. Watch it closely, so it doesn't burn.

Instructions

Here's how to make homemade chicken florentine. You might be surprised at just how simple this is.

Cook the chicken

The very first step is to cook the chicken breasts. I poached mine, but you can pan-sear them until they are golden brown or even use the air fryer for cooking them.

You can poach the chicken in some water or some chicken broth. Chicken stock works great too!

Make the sauce

Mix the grated parmesan cheese, mayonnaise, and sour cream together in a small mixing bowl.

Arrange the casserole

Place the baby spinach and the cooked chicken breasts in the bottom of the casserole dish. Spread the cheese mixture on top.

Bake the casserole

Bake the chicken Florentine casserole in the oven for about 35 minutes or until the edges are browned.

????️ Serving suggestions

The casserole was enough to feed me for two large double-serving dinners and one single-serving lunch. It's really easy to put together an entire meal with this Florentine chicken recipe.

Serve with a side of cauliflower rice or mashed cauliflower!

This is also a great recipe to use in your meal prep. Store it in the refrigerator with your favorite broccoli and bacon salad. You can even make some keto dinner rolls to serve on the side.

Variations

I'm a big fan of easy casserole dishes like this keto chicken Florentine casserole. There are quite a few different changes you can make to this recipe. Here are some of the simplest ones.

Save yourself and time and use low-carb rotisserie chicken or any cooked shredded chicken in this casserole.
Feel free to be creative with the types of cheese you use whenever you make easy keto recipes like this one.
Rather than use all parmesan cheese for the topping, a mix of different types of cheese would be a nice change. Asiago cheese would taste deliciously mixed in.
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 to suit your own taste. 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.
Or, replace the mayonnaise and sour cream with heavy cream and cream cheese and make it a keto chicken florentine soup.

chicken florentine casserole on serving plates.

FAQs

Before we get to the printable recipe card, here are some questions people often ask about how to make this keto Florentine chicken.

Are chicken breasts or chicken thighs better for creamy chicken Florentine?

You can use either one, as long as they are boneless and skinless. The chicken breasts will not dry out in the oven because they are covered in the creamy sauce.

What is the safe cooking temperature of chicken?

When using a meat thermometer, the internal temperature should be at least 165°F.

How do you store leftovers from this chicken recipe?

Store leftovers in an airtight container in the refrigerator for up to three days.

Is chicken Florentine ok to eat on the ketogenic diet?

Yes, all of the ingredients are keto-friendly. Baby spinach, cooked chicken, and the creamy sauce are all low-carb.

chicken florentine casserole serving on white plate.

If you enjoyed this chicken Florentine recipe, here are some more easy casserole recipes and low-carb chicken recipes you should make next. They are some of my favorites!

Low Carb Chicken Green Bean Casserole is another light and creamy casserole that kids love.
Keto Chicken Cordon Bleu Casserole is a high-protein dinner that the entire family will love.
Low-Carb Paleo Buffalo Chicken Casserole is loved by everyone that enjoys the spicy buffalo flavor.
Keto Chicken Bacon Ranch Casserole combines delicious ingredients for a super satisfying dish!
Low-Carb Chicken Parmesan Casserole combines the flavors of three popular Italian dishes into one tasty meal!

Follow us on FACEBOOK, PINTEREST, and INSTAGRAM for even more tasty keto-friendly recipes!

Recipe

Easy Chicken Florentine Casserole Bake

4.42 from 31 votes

This easy keto chicken Florentine casserole is quick and simple to prepare. It's a creamy blend of cut chicken, spinach, and Parmesan cheese.

Prep Time:10 mins

Cook Time:45 mins

Total Time:55 mins

Course: Main Course

Cuisine: American

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Servings: 5 people

Calories: 401

Video

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

Nutrition

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
)

Notes 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.

Copyright

© LowCarbYum.com - Unauthorized use of this material without written permission from Lisa MarcAurele is strictly prohibited unless for personal offline purposes. Single photos may be used, provided that full credit is given to LowCarbYum.com along with a link back to the original content.

First published on November 10, 2010. Post updated on June 2, 2022, with new photos and additional recipe information.

Comments

« Previous 1 2

Marie Seibel

May 18, 2022 at 8:17 pm

Made this tonight for dinner. Served over palmini noodles simmered for 30 minutes and tossed with olive oil. It was amazing.

Linda ONeal

July 24, 2021 at 6:57 pm

Do u think canned chicken would work?

- Lisa MarcAurele
  
  July 25, 2021 at 6:24 am
  
  I have used canned chicken in casseroles so it should work in this dish.
  
Bumbershoot

June 15, 2020 at 9:06 pm

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.

- Lisa MarcAurele
  
  June 16, 2020 at 8:41 am
  
  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.
  
Uncle Phil

March 11, 2020 at 12:20 pm

Awesome!!

Sandy

December 30, 2019 at 9:31 pm

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

Maura

April 02, 2019 at 8:06 pm

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

- Lisa MarcAurele
  
  April 02, 2019 at 9:57 pm
  
  The spinach should be drained and squeezed of most of the liquid. Maybe that was it?
  
Amy Boggs

March 06, 2019 at 2:06 pm

I made this last night and it was delish!

Sara

February 09, 2019 at 5:20 pm

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

- Lisa MarcAurele
  
  February 10, 2019 at 9:28 am
  
  I've always cooked the chicken first. Might need to cover and cook longer if the chicken is raw.
  
Casey

January 26, 2019 at 5:09 pm

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!

- Lisa MarcAurele
  
  January 27, 2019 at 6:54 am
  
  That does sound fabulous!
  
Heather

January 07, 2019 at 8:16 pm

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

- Lisa MarcAurele
  
  January 08, 2019 at 8:42 am
  
  Thanks for sharing your version! Cream cheese is a great sub for sour cream.
  
  - TAMARA
    
    February 25, 2019 at 4:21 pm
    
    CAN I USE CREAM CHEESE INSTEAD OF CREAM OF MUSHROOM SOUP? IF SO 4OZ OR THE WHOLE 8 OZ?
  - Lisa MarcAurele
    
    February 25, 2019 at 8:36 pm
    
    There's no cream of mushroom soup called for. Are you wanting to sub out the sour cream?
  - Debbi Wagers
    
    November 15, 2020 at 6:20 pm
    
    If using fresh spinach how much should you cook up?
  - Lisa MarcAurele
    
    November 16, 2020 at 10:44 am
    
    You can use the same amount, about 10 ounces.
Emily Parker

September 15, 2018 at 9:59 am

Will this freeze well?

- Lisa
  
  September 15, 2018 at 10:29 am
  
  It should based on the ingredients.
  
Michelle

September 02, 2018 at 6:53 pm

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

- Lisa
  
  September 03, 2018 at 5:52 am
  
  Thanks for letting us know it was a hit!
  
Michelle

July 11, 2018 at 9:04 pm

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

- Lisa
  
  July 12, 2018 at 7:53 am
  
  You can use yogurt or add a thickener to heavy cream.
  
Emma Chatman

May 02, 2018 at 1:54 pm

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

Chelsea Oliveiral

April 17, 2018 at 9:45 pm

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

- Lisa
  
  April 18, 2018 at 5:47 am
  
  I haven't tried it, but it's usually a one-for-one substitute so it should work out okay.
  
Pam

April 02, 2018 at 12:24 pm

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.

Glenda

November 08, 2017 at 5:51 pm

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

- Lisa
  
  November 08, 2017 at 8:02 pm
  
  Enjoy! 🙂
  
Tammy

October 14, 2017 at 6:26 am

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

- Lisa
  
  October 14, 2017 at 7:43 pm
  
  You're welcome! It was one of my go-to recipes when I returned low carb.
  
Linda V

September 06, 2017 at 4:08 pm

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.

- Lisa
  
  September 06, 2017 at 7:15 pm
  
  There's so many ways to enjoy low carb veggies! Have you tried them as fries? Zucchini fries are delicious!
  
- Linda
  
  April 11, 2018 at 1:36 pm
  
  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?
  
Elsa

May 13, 2017 at 3:41 pm

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?

- Lisa
  
  May 14, 2017 at 5:53 am
  
  The more cheese the better!

Easy Chicken Florentine Casserole Bake

Why you'll love it