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Chicken Broccoli Casserole

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Wellness Mama » Blog » Recipes » Chicken Broccoli Casserole

No one loves a good casserole recipe more than a mom. From her perspective, it’s a complete meal, loaded with veggies, and baked all in one dish. It’s easy for serving and cleanup and can be made in advance. And as an added bonus, the recipe can usually be doubled and half of it frozen for another meal!

Besides this cheesy chicken broccoli casserole, my family’s favorite casserole is my sweet potato shepherd’s pie. Both are excellent and easy to make on a busy day.

Easy Cheesy Chicken Broccoli Casserole

It’s easiest to make this recipe with pre-cooked chicken. I frequently cook extra chicken on weekends or when I’m making some for another recipe (like chicken enchiladas verdes) so that I have some ready to go when I’m short on time. However, you can absolutely start with raw chicken and bake it in the oven or dice it and then saute it in a skillet.

I also like to use frozen veggies, again to save on time and prep work. But go ahead and use fresh ones if you’d like. I typically use broccoli and cauliflower because they’re easy to find and my family likes them, but you could also use frozen carrots.

Delegate It to the Kids!

I love to let my kids help cook whenever possible. Letting the kids help cook is one of the ways I help them learn to love a wide variety of foods. It’s also a really great way to help avoid developing picky eaters.

Years ago I enrolled them in an online cooking school. They learned the basics of recipe reading, measuring, and knife safety and loved it. We also have a crinkle cutter with a wooden handle. It’s a great tool for letting little hands help with chopping and grating.

Now that they are older I’m reaping the rewards of the earlier challenges of teaching the kids to cook. My kids are actually a tremendous help many nights and can even cook several meals on their own. The messes and spills we cleaned up by letting them “help” when they were younger have paid dividends.

Chicken Broccoli Casserole Recipe

Delicious chicken and broccoli casserole with optional sour cream, cheese, and spices.
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Calories 356kcal
Author Katie Wells


6 servings


  • 4 chicken breasts (cooked)
  • 4 TBSP butter (cubed)
  • 1 bag frozen broccoli (or 1 head fresh)
  • 1 bag frozen cauliflower (or 1 head fresh)
  • 1 medium onion (diced)
  • 2 cups cheddar cheese (shredded, optional)
  • cup sour cream (optional)
  • ¼ cup water
  • 1 tsp basil
  • 1 tsp garlic powder
  • 1 tsp salt
  • ½ tsp pepper
  • ¼ cup Parmesan cheese (optional)


  • Preheat the oven to 375°F.
  • If not using pre-cooked chicken, bake chicken until cooked or dice and sauté in a skillet.
  • Place the butter in the bottom of a 9×13 baking dish. 
  • Add the broccoli, cauliflower, and diced onion.
  • Cook in the oven for 20-25 minutes or until heated and mostly cooked.
  • While the vegetables are heating, chop the chicken into bite sized pieces and grate the cheese if necessary.
  • Remove the vegetables from oven.
  • Add the chopped chicken, cheddar cheese, sour cream, spices, and ¼ cup water to the vegetables and mix well.
  • Top with Parmesan if desired and return the baking dish to the oven.
  • Continue cooking until the cheese is melted and everything is heated through.


Nutrition Facts
Chicken Broccoli Casserole Recipe
Amount Per Serving
Calories 356 Calories from Fat 252
% Daily Value*
Fat 28g43%
Saturated Fat 17.6g110%
Cholesterol 85mg28%
Sodium 812mg35%
Carbohydrates 9.7g3%
Fiber 2.9g12%
Sugar 3g3%
Protein 18.5g37%
* Percent Daily Values are based on a 2000 calorie diet.


The time frame listed for this recipe applies to use of pre-cooked chicken and diced frozen vegetables. 
Make and extra batch and freeze it for an easy meal another time!

Like this recipe? Check out my new cookbook, or get all my recipes (over 500!) in a personalized weekly meal planner here!

What’s your favorite casserole? Share below!

Katie Wells Avatar

About Katie Wells

Katie Wells, CTNC, MCHC, Founder of Wellness Mama and Co-founder of Wellnesse, has a background in research, journalism, and nutrition. As a mom of six, she turned to research and took health into her own hands to find answers to her health problems. WellnessMama.com is the culmination of her thousands of hours of research and all posts are medically reviewed and verified by the Wellness Mama research team. Katie is also the author of the bestselling books The Wellness Mama Cookbook and The Wellness Mama 5-Step Lifestyle Detox.


21 responses to “Chicken Broccoli Casserole”

  1. Shivakumar Avatar

    4 stars
    We tried the Chicken Broccoli Casserole for the first time last night and the food was great and very tasty

  2. Tracy Avatar

    3 stars
    I don’t eat dairy so I made this recipe without sour cream or cheese and used fresh veggies, not frozen. Based on a previous comment, I microwaved the veggies for 5 minutes first. This strategy worked and they were not crispy. However, I must say that without the cheeses and sour cream, this recipe was a little dry.

  3. Carrie Avatar

    Is there anything to hold this together if you don’t use cheese or sour cream? It says the dairy is optional, and we are dairy free.

  4. Sydney Avatar

    5 stars
    Just made this and added 1 cup of quinoa cooked with chicken broth instead of water. Delicious protein dinner! Going to try freezing a pan too. Thanks!

  5. Crystal Avatar

    What cheese do you use when you say “cheese”? Sorry for the silly question but I really want to make it right and I am sure that I could easily choose the wrong cheese lol

      1. Crystal Avatar

        5 stars
        Thank you so much for clarifying that! Bc I am a procrastinator and asked you this 5 mins before I made dinner I used all Parmesan cheese, though it was still AMAZING thanks to your recipe I will definitely be trying it with white cheddar next time! Thanks again so much and God Bless you for all you do!

  6. Bonnie Avatar

    5 stars
    Thank you for this recipe! I am very bad at following recipes exactly, but this one really inspired me and added an easy, delicious, healthy dish to our rotation! I always have onion, garlic, and butter..but I make this dish when I have (now I try to have all of these on hand):
    1. cooked chicken, or breasts that are defrosted and easy to cook
    2. sour cream and/or cream cheese and some sort of other cheese
    3. frozen veggies of just about any sort (have tried broccoli, cauliflower, green bean, artichoke, carrot)

    What I learned from your recipe is that I can dump those frozen veggies into a baking dish (I don’t add butter or onion at this stage) and stick them in the oven while I sauté up some onions and garlic (I also add herbs and other fresh veggies here like mushrooms). Once they are done sautéing I mix them with the sour cream, chicken and cheese and finish off in the oven. Delicious! Everyone loves it.

    Thank you Katie! 🙂

  7. Katie L. Avatar
    Katie L.

    5 stars
    So good! Just made this for supper and my 5 boys (ages 10 and under) all loved it!

  8. VickiB Avatar

    5 stars
    I made this earlier in the week and I and my husband both loved it. I too, had water in the bottom with crispy veggies so I think I’ll just leave the water out. We don’t mind crunchy veggies. I like that it has the cauliflower also. This will be a perfect “go-to” recipe once I start precooking chickens over the weekend! Thank you!

  9. Evelyn Avatar

    I made this this eve. My whole family really liked it!! My family was starving and wanted to eat…..the veggies were still a little crisp and there was quite a bit of liquid in the bottom of the dish. Next time I will allow more cooking time. It seemed to take much longer than the recipe indicated. Might even microwave the veggies a little first. All in all it was a hit.

  10. Shana Avatar

    Does this Chicken Broccoli Casserole fair well if you freeze it and try to reheat?
    Thanks & Blessings,
    The How to Guru

  11. April Avatar

    This recipe is delicious!

    A couple of suggestions to help make the instructions easier to follow:

    – Specify what size casserole dish you’ll need for this, as you’ll need a larger one (!).

    – It wasn’t clear what you do with the 4 TBSP of butter by how the recipe is written, and so I assumed it was to use with the onions (see the following).

    – Sauté the onions before you add the frozen vegetables, to ensure the onions get cooked enough and are soft.

    – Include amount of basic and garlic (as well as the type of garlic–fresh chopped? powder?) that you typically use would be great for us new to cooking.

    Thank you for all of your great recipes and articles. 🙂

  12. Jackie Avatar

    Just made this and the reaction from the whole family was ‘Wow’!  Only thing I changed was I fried onion and garlic in butter then added it to casserole with the sour cream.   It’s gone onto our list of regular dinners, thanks.

  13. Cheryl T. Avatar
    Cheryl T.

    I love all of your recipes. The only thing that would make them better is if you can list a “ballpark” time it takes to create these meals. I’ve gotten over my head a few times with some of your recipes that seem like they won’t take much time, but end up consuming my night. Thanks!

    1. Carmen Avatar

      I have the exact same problem, and not just with wellness mama… this will probably take me 2 hours to make ;/

3.99 from 54 votes (46 ratings without comment)

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