Creamy Chicken Broccoli Casserole with Quinoa


Chicken Broccoli Casserole is a hearty, comforting and deliciously satisfying dish that’s perfect for busy days. Here you get nutritious quinoa tossed with protein rich tender chicken, vitamin packed broccoli and it’s all tossed with a rich and creamy sauce.

Chicken Broccoli Casserole in a serving bowl.

Easy Chicken and Broccoli Casserole My Way

I’ve been meaning to post this recipe for a while but it’s just one of those things that I’ve dreaded taking a picture of. Let’s face it, casseroles just aren’t very pretty.

Some of them (just some of them) taste delicious but they’re just so piled together that there’s no making them look “fancy,” shall we say. Here’s my attempt at making it look decent though :).

This recipe was adapted from my moms broccoli chicken casserole. It’s very similar I just made a few changes.

Chicken Broccoli Casserole

Making it a Little Healthier

I replaced the rice her recipe calls for with quinoa for added nutrition (I also replaced some of the butter with olive oil for a healthier fat), then I added onion and garlic and the herbs for more flavor.

Now I’m having a hard time deciding which I like more the traditional version or this quinoa version.

I do know however, that I’ll be making it this way much more often because I’ve gotten hooked on quinoa. It took me a while to get used to it’s unique flavor but now I love it. I hope you do too! Enjoy!

Creamy Broccoli and Chicken Quinoa Casserole | Cooking Classy

How to Make Chicken Broccoli Casserole

  • Cook chicken, steam broccoli and cook quinoa.
  • Saute onion and garlic then make roux with flour.
  • Season mixture, stir in half of the parmesan, the sour cream, lemon and parsley.
  • Layer ingredients into baking dish and top with white sauce.
  • Bake in preheated oven.

Time Saving Tips

  • Use cooked rotisserie chicken in place of chicken breasts.
  • Use thawed frozen broccoli in place of steamed.
  • Make a bigger batch of quinoa for other recipes throughout the week then measure out 3 cups for this recipe. Or alternately left over rice will work too.

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Creamy Chicken Broccoli Casserole with Quinoa

Chicken Broccoli Casserole is a hearty, comforting and deliciously satisfying dish that's perfect for busy days. Here you get nutritious quinoa tossed with protein rich tender chicken, vitamin packed broccoli and it's all tossed with a rich and creamy sauce.

Servings: 8
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes


  • 1 1/4 lbs boneless , skinless chicken breasts, cooked and diced
  • 12 oz broccoli florets (about 4 cups), diced and steamed just until tender
  • 1 1/2 cups dry quinoa
  • 2 cups low-sodium chicken broth
  • 1 1/2 Tbsp butter
  • 1 1/2 Tbsp extra virgin olive oil
  • 1 cup finely chopped onion (about 1 medium onion)
  • 1 clove garlic , minced
  • 3 Tbsp all-purpose flour
  • 2 cups milk
  • 1/4 tsp dried thyme
  • Salt and freshly ground black pepper to taste
  • 4 oz finely shredded parmesan cheese , divided (about 1 cup slightly packed)
  • 3/4 cup sour cream
  • 1 Tbsp lemon juice
  • 1 Tbsp chopped fresh parsley (or 1 tsp dried)


  1. Cook quinoa according to directions replacing 2 cups of water with the 2 cups chicken broth (so you should be using 2 cups broth 1 cup water). Preheat oven to 325 degrees. 
  2. In a large skillet, melt butter along with olive oil. Add in onion and saute over medium heat until soft. Add in garlic and flour and cook, stirring constantly for 1 minute. While whisking slowly pour in milk, then add in thyme and season with salt and pepper to taste. 
  3. Cook, stirring constantly until thickened then remove from heat and stir in half of the parmesan cheese, then mix in sour cream, lemon juice and fresh parsley.
  4. To assemble, butter a 13 by 9-inch baking dish and spread half of the cooked quinoa into an even layer in bottom of baking dish. Then spread steamed broccoli into an even layer over quinoa, followed by chicken then remaining cooked quinoa. 
  5. Pour white sauce evenly over top and spread into an even layer and sprinkle top with remaining parmesan cheese. Bake in preheated oven 25 minutes. Serve warm.
Course: Main Course
Cuisine: American
Keyword: Chicken Broccoli Casserole
Author: Jaclyn


  • Sarah: I am dairy free. can i substitute anything for the diary products. what do you suggest? June 24, 2015 at 3:01pm Reply

  • Theresa: This was amazing. Made it tonight and the whole family loved it. We use whole raw milk and I did use coconut oil instead of butter and evoo, trying to get more in our diet, and it was simply scrumptious! Thank you! August 19, 2014 at 6:40pm Reply

    • Jaclyn: I’ll have to try it with coconut oil next time, great idea! Thanks for your comment, so glad you family loved it Theresa! September 6, 2014 at 11:31pm Reply

  • Salsera77: Made this last night!!! I love quinoa and this was sooooo delicious- I used oak milk cream and crème fraiche instead of normal milk and sour cream as I can’t find sour cream here in France and don’t tolerate normal milk and it was really yummy. Thanks again for all your delicious recipes June 12, 2014 at 1:57am Reply

    • Jaclyn: I’m so glad you liked this recipe too :)! Thanks so much for your feedback! June 12, 2014 at 10:03am Reply

  • Elizabeth Palacios: Hi Jaclyn!!

    I just want to tell you how much I LOVE your blog!!! Every recipe we have made is perfect! I don’t normally love to cook, but after finding your blog, I love picking out recipes and cooking them! PLEASE keep the recipes coming and don’t ever stop!!! ;) March 12, 2014 at 7:53pm Reply

    • Jaclyn: I’m so happy to hear you like my blog and the recipes Elizabeth! Thanks so much for letting me know :)! March 23, 2014 at 4:33pm Reply

  • Chelsea: Could you substitute the sour cream for Greek yogurt? March 6, 2014 at 2:45am Reply

    • Jaclyn: You probably could it just might separate a little bit. I don’t bake savory recipes with greek yogurt much so I’m trying to remember. March 7, 2014 at 7:10pm Reply

    • Trisha: I am not an expert. :) I substituted the sour cream with Greek yogurt and my family loved it. April 13, 2014 at 10:30am Reply

  • emmy: its just now it the oven and I’m sure it will be delicious!! February 15, 2014 at 12:55pm Reply

  • Karah: So where does the sour cream come in? It’s in the list of ingredients but it’s not in the directions. Did I miss something? Thanks! Looking forward to trying this! January 30, 2014 at 2:35pm Reply

    • Jaclyn: It’s in the second part of the recipe :). February 4, 2014 at 9:58pm Reply

  • Quinoa Recipes – Rachel Cooks: […] Creamy Broccoli and Chicken Quinoa Casserole {Cooking Classy} […] January 25, 2014 at 3:31am Reply

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