Name: Chicken Broccoli Casserole with Cauliflower Rice
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Ingredients: 1 tbsp olive oil; 2 garlic cloves ((minced)); 1 cup chicken broth; 3/4 cup heavy whipping cream; 1 cup sour cream; 2 1/2 cups shredded cheddar cheese ((divided)); 1 1/2 tbsp Italian seasoning; 1 tsp thyme; 1 tsp salt; 1/2 tsp pepper; 3 cups cubed or shredded rotisserie chicken ((or cooked chicken, cubed or shredded)); 3 cups broccoli florets; 10- oz or 12-oz bag frozen cauliflower rice; 1/2 cup crushed parmesan crisps ((or crushed Ritz crackers))

This Chicken Broccoli Casserole with Cauliflower Rice is a game-changer! Packed with flavor and loaded with veggies, it’s a delicious way to sneak more nutrition into your family’s meals.

overhead view of chicken cauliflower rice casserole serving on a white plate with a gold serving fork

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Why You Will Love This Chicken Broccoli Cauliflower Rice Casserole

It includes more veggies in the form of cauliflower rice. It’s always a good thing when you can sneak in a few more vegetables into your daily menu! This recipe swaps out traditional rice and swaps in cauliflower rice.
This casserole is creamy and cheesy. And you can’t go wrong with that combo, right?! It’s so good, your family will be asking you to make it again!
Rotisserie chicken makes prep super easy. You can use any cooked chicken for this casserole, but grabbing a rotisserie chicken keeps things simple and adds extra flavor.

Ingredients Needed for Chicken Casserole with Cauliflower Rice

Ingredient quantities for this easy chicken casserole recipe are located in the recipe card at the end of the post.

Olive oil
Garlic cloves
Chicken broth
Heavy whipping cream
Sour cream
Shredded cheddar cheese
Italian seasoning
Thyme
Salt and pepper
Rotisserie chicken (or cooked chicken)
Broccoli florets
Frozen cauliflower rice
Parmesan crisps or Ritz crackers

How To Make Chicken Cauliflower Rice Casserole (Quick Overview)

The steps below are just a quick overview of how to make the casserole. The full process in detail is located in the recipe card at the end of the post.

First, you’ll want to prep the veggies: the broccoli and cauliflower rice.

To prep the broccoli: Toss the broccoli florets into a microwave-safe bowl, add about 3 tablespoons of water, and cover it with a microwave-safe plate or lid. Microwave on high for 3 minutes, then carefully remove the cover, drain any extra water, and set it aside.

To prep the cauliflower (do this while the broccoli is cooking): While the broccoli’s steaming, cook the cauliflower rice following the package instructions. Drain any extra water and set that aside, too.

Now that your veggies are ready… in a large bowl, mix together the broth, heavy cream, sour cream, Italian seasoning, salt, pepper, thyme, and 1 1/2 cups of shredded cheddar cheese until smooth and combined.

For the best melt, shred your cheese by hand—store-bought shredded cheese usually has anti-caking agents that prevent it from melting well.

Add the cubed or shredded rotisserie chicken (or cooked chicken) and give it a good mix. Then toss in the steamed broccoli and cauliflower rice and stir everything together.

For the best flavor (and for convenience), I highly recommend using rotisserie chicken in this casserole. But regular cooked chicken works too!

Spread the mixture into a 9″x13″ casserole dish. Sprinkle the remaining shredded cheddar cheese on top and bake for 15 minutes.

Take it out, sprinkle on some crushed parmesan crisps (or Ritz crackers for a more buttery flavor), and bake for another 10 minutes.

Your casserole is done and ready to serve. Enjoy!

More Chicken Casserole Recipes

Score big on game day with this crowd-pleasing chicken bacon and ranch casserole—the ultimate comfort food!
Bring the family together with this cozy casserole with stuffing and chicken! It’s the perfect dish for a delicious family night.
Looking for a healthy hit? This zucchini and chicken casserole is a guaranteed crowd favorite every single time!
Love buffalo chicken dip? Take it to the next level with this hot wing casserole—a low-carb twist perfect for family meals.

overhead view of chicken bacon and ranch casserole in casserole dish with a black serving spoon — **Chicken Bacon Ranch Casserole**

sideview of serving of chicken stuffing casserole on white dish with remaining casserole in background — **Chicken Bacon Ranch Casserole**

I hope your family loves this casserole. It’s a huge favorite in my household!

sideview of chicken cauliflower rice casserole in a white casserole dish with black serving spoon scooping one portion

More Casserole Recipes

Craving comfort food? This meatball pasta bake is a guaranteed family favorite—delicious, hearty, and oh-so-satisfying!
Take your taste buds to Italy with this easy meatball casserole recipe. It’s packed with bold, irresistible flavors everyone will love!

overhead view of meatball pasta bake casserole in a glass casserole dish with meatballs, rigatoni, marinara sauce and melted mozzarella cheese — **Meatball and Pasta Bake**

overhead view of meatball casserole topped with cheese in a glass casserole dish on a white marble countertop and clean white dishtowel laying next to it — **Meatball and Pasta Bake**

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Chicken Broccoli Casserole with Cauliflower Rice

This Chicken Broccoli Casserole with Cauliflower Rice is a game-changer! Packed with flavor and loaded with veggies, it's a delicious way to sneak more nutrition into your family's meals.

Servings

Course Dinner, Lunch, Main Course

Cuisine American, Western

Keyword chicken casserole recipes, chicken cauliflower rice casserole, gluten free recipes, healthy dinner ideas, low carb recipes

Prep Time 10

Cook Time 25

Total Time 35

Ingredients

1 tbsp olive oil
2 garlic cloves (minced)
1 cup chicken broth
3/4 cup heavy whipping cream
1 cup sour cream
2 1/2 cups shredded cheddar cheese (divided)
1 1/2 tbsp Italian seasoning
1 tsp thyme
1 tsp salt
1/2 tsp pepper
3 cups cubed or shredded rotisserie chicken (or cooked chicken, cubed or shredded)
3 cups broccoli florets
10- oz or 12-oz bag frozen cauliflower rice
1/2 cup crushed parmesan crisps (or crushed Ritz crackers)

Instructions

Preheat oven to 350 F.
Place broccoli florets in a microwave-safe bowl. Pour 3 tablespoons of water over the broccoli, cover the bowl with a microwave-safe plate, and microwave on high for 3 minutes. Afterward, remove the plate carefully, drain any extra water, and set the broccoli aside.
While the broccoli is steaming, follow the package instructions to prepare the cauliflower rice. Drain any excess water and set it aside.
In a large bowl, combine broth, heavy whipping cream, sour cream, Italian seasoning, salt, pepper, thyme, and 1 1/2 cups of shredded cheddar cheese.
Add the shredded rotisserie chicken and mix well.
Combine the broccoli and cauliflower rice with the mixture.
Transfer the mixture to a 9” x 13” casserole dish.
Sprinkle the remaining shredded cheddar cheese on top and bake in the oven for 15 minutes.
Once done, take the casserole dish out and evenly sprinkle crushed parmesan crisps (or Ritz crackers) on top. Return to the oven and bake for an additional 10 minutes.

Nutrition Estimates (Per Serving)

Nutrition Disclaimer

Nutrition Estimates are per serving and included as a courtesy only. They are accurate to the best of our knowledge based on the ingredients and brands used, but their accuracy is not guaranteed.