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keto broccoli and chicken casserole on white plates

Keto Chicken Broccoli Casserole

This KETO CHICKEN BROCCOLI CASSEROLE is extra cheesy and bursting with goodness. My whole family loves this mixture of creamy, cheesy broccoli and juicy chicken. This casserole is ready in less than 30 minutes!

keto broccoli chicken casserole on white plate

I have a feeling that one of these days I’m going to share a broccoli recipe and you guys are just going to leave me behind. 

I mean, look…I know I share a lot of broccoli recipes, it’s just that they’re SO GOOD. I love broccoli! 

Most people think ‘cauliflower’ when they think low carb, but not this girl. I’m all about the little baby trees. 😉 

This recipe is a riff on my broccoli cheese casserole that has been reviewed over 400 times with a 4.5 star rating. It’s the best!

low carb broccoli chicken casserole in white baking dish

How to: 

We love this keto chicken and broccoli casserole for a few reasons:

  1. It’s extra cheesy!
  2. It’s perfect for keto!
  3. It’s QUICK and EASY!

We start this recipe with a head of broccoli and that gets microwaved with a bit of water just to soften it up a bit. 

cheesy chicken broccoli casserole recipe

KEEP IT SIMPLE: Buy a bag of already chopped broccoli florets! 

The microwave steams the broccoli just a bit to give it a head start on the cooking process. I just add the broccoli and 2 tablespoons of water to a large bowl, cover tightly with plastic wrap, and microwave for 2 minutes. Let this stand for 2 minutes before carefully removing the plastic wrap and draining the liquid. So easy!

ingredients for broccoli chicken casserole recipe in glass mixing bowl

Next, you’ll just dump in the rest of the ingredients! 

You’ll need leftover chicken, cream cheese, mayo, cheddar, garlic powder, salt, and pepper. 

PRO TIP: If you don’t have leftover chicken, you can grab a rotisserie chicken from the store or use a bag of the pre-cooked, frozen chunks of grilled chicken. Just thaw them in the microwave before using.

Stir all of that together until it’s combined and then spread it into a 9×13 baking dish.

broccoli chicken casserole in white casserole dish

Sprinkle a bit of shredded Parmesan over the top to add a little salty crunch factor. 

This bakes up in just 15 minutes. 

keto broccoli and chicken casserole on white plates

We like to serve this keto chicken broccoli casserole with something a little lighter on the side, like my keto coleslaw

Of course, my keto cheddar bay biscuits make a great addition to this meal too!

keto broccoli chicken casserole recipe in white baking dish

More low carb favorites:

low carb broccoli casserole

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broccoli and chicken casserole recipe

Keto Chicken Broccoli Casserole

This low carb casserole is extra cheesy and packed with chicken. Our family loves it for a quick weeknight dinner.

Yield 4 servings
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes


  • 20 ounces fresh broccoli florets
  • 8 ounces cream cheese, room temperature
  • ¼ cup mayonnaise
  • 1 cup freshly grated cheddar cheese
  • 1 teaspoon garlic powder
  • ½ teaspoon ground black pepper
  • ¼ teaspoon salt
  • 2 cups cooked, chopped chicken
  • ¼ cup grated Parmesan


  1. Preheat oven to 350 degrees.
  2. Add the broccoli to a large microwave safe bowl along with 2 tablespoons of water. Cover tightly with plastic wrap and microwave for 2 minutes. Let sit, covered, for 2 minutes.
  3. Carefully remove the plastic wrap and drain the liquid.
  4. Add the cream cheese, mayonnaise, cheddar, garlic powder, salt, and pepper to a small bowl and mix well to combine.
  5. Stir the cream cheese mixture and chicken into the steamed broccoli until well combined.
  6. Transfer broccoli to a 9x13 baking dish and sprinkle the Parmesan over the top.
  7. Bake for 15 minutes.


Use pre-cut broccoli florets to keep it extra easy.

Rotisserie chicken, leftover cooked chicken, or the frozen chunks of grilled chicken you can buy at the store all work well in this recipe. If you using frozen chicken, thaw before adding to the casserole.

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Nutrition Information:

Yield: 4 Serving Size: 1
Amount Per Serving: Calories: 612Total Fat: 44gSaturated Fat: 19gTrans Fat: 0gUnsaturated Fat: 24gCholesterol: 186mgSodium: 801mgCarbohydrates: 12gNet Carbohydrates: 7gFiber: 5gSugar: 5gProtein: 41g

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52 thoughts on “Keto Chicken Broccoli Casserole”

  1. Made this for my overworked kindergarten teacher daughter and her family. They LOVED it and I recommend it to everyone!

  2. Oh my! I overlooked the cooked part for chicken but that’s ok cause I just had my 2nd brain stem surgery so my mind sometimes don’t be there. So what I did was cook it for 45 minutes. Similar to my favorite broccoli, chicken, rice casserole which is a dump and bake!

    I also used Frozen Broccoli Florets.

    It turned out pretty tastey. Well then again my taste buds are off from brain surgery so who knows or it was cause I hadn’t ate anything in 24 hrs!

  3. Brenda Almond

    Have tried many times, love it. Sometimes I add cooked bacon pieces or use heavy cream (still keto) instead of mayo. Sliced or few grape tomatoes also give it a nice flavor. Like I said love this recipe!

  4. Kathy Ackerman

    Good basic starting recipe. But I added a bit of heavy cream because the sauce didn’t seem to mix properly with the broccoli and chicken otherwise.

    I also added some sauteed mushrooms and shallots to add some more flavor.

  5. We love anything curry, so we will try this and mix in some curry power as well. Should taste really good.

    1. Karly Campbell

      We’ve only made this with fresh broccoli. I imagine frozen will work, but it will be more watery and have a different texture.

  6. Revise your recipe to mention “cooked chicken” at every instance otherwise it is easily missed. Like I missed it. Raw chicken and baked broccoli with cheese is not awesome.

    1. Karly Campbell

      Sorry to hear that you missed it. It’s clearly stated to use cooked chicken in both the post, the recipe, and the notes. Hope you give it a try with cooked chicken…it’s so good! 🙂

  7. Michael Milbourn

    Sort of left field but I was in a hurry and out this recipe in a pressure cooker and it was great! Added a bit of bacon and 1.5 tbsp of heavy cream. Somewhere between a stew and soup and was really really good.

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