This Chicken Broccoli Rice Cheese Casserole is one of my all-time favorite comfort foods. I remember coming home from school, and the smell of it baking in the oven made the whole house feel warm and inviting. It quickly became a family staple, and it's easy to see why. This dish combines tender chicken, fluffy rice, and hearty broccoli, all smothered in creamy goodness.

The best part is that it’s a one-dish meal packed with flavor and nutrition. It saves time on cleanup while delivering a hearty dinner that everyone loves. Trust me, you will want to add this Chicken Broccoli Rice Cheese Casserole to your weekly meal plan!
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Why You’ll Love This Recipe
- Easy Preparation: This casserole requires minimal prep time, making it perfect for busy weeknights.
- One-Dish Wonder: Cooking everything in one dish means less cleanup and more time to enjoy with family.
- Comforting Flavor: The combination of chicken, cheese, and broccoli creates a comforting and satisfying meal.
- Versatile Ingredients: You can easily swap ingredients based on what you have on hand, like using different veggies or protein sources.
- Kid-Friendly: This dish appeals to both kids and adults, ensuring that everyone at the table will be happy.
Ingredients You'll Need
- Diced rotisserie chicken or cooked chicken breasts – 2 cups. Adds protein and makes the dish hearty.
- Long grain white rice – 1 cup (2 cups cooked). Serves as the base for the casserole.
- Frozen broccoli florets or fresh broccoli florets – 12 ounces (thawed) or 2 cups. Provides a nutritious veggie boost.
- Cream of mushroom soup – 10.5 ounces can. Adds creaminess and depth of flavor to the casserole.
- Sour cream – ½ cup. Enhances richness and gives the dish a creamy texture.
- Shredded sharp cheddar cheese – 1 ½ cups (divided). Provides a delightful cheesy flavor that binds the casserole.
- Crushed Corn Flakes – 1 cup. Adds a crunchy topping that contrasts nicely with the creamy filling.
- Butter – 2 tablespoons (melted). Helps to crisp the Corn Flakes topping and adds extra flavor.
How to Make Chicken Broccoli Rice Cheese Casserole
Step 1: Preheat Your Oven
Preheat your oven to 350°F. This ensures the casserole cooks evenly and becomes golden brown on top.
Step 2: Prepare the Baking Dish
Grease a 13x9 baking dish with cooking spray or butter. This prevents the casserole from sticking and makes cleanup easier.
Step 3: Mix the Ingredients
In the greased baking dish, stir together the diced chicken, cooked rice, broccoli, cream of mushroom soup, sour cream, and 1 cup of shredded cheddar cheese until thoroughly combined. Ensure every ingredient is well mixed for even flavor.
Step 4: Add Cheese and Topping
Sprinkle the remaining ½ cup of shredded cheddar cheese over the casserole mixture. Then, top it off with crushed Corn Flakes for a crunch and drizzle melted butter over the top.
Step 5: Bake the Casserole
Bake the casserole for about 30-35 minutes. You'll know it's ready when the top is golden and the cheese is bubbly. Remove from the oven and let it cool slightly before serving.

Pro Tips from My Kitchen
✓ Use Leftover Chicken – If you have leftover chicken, use it instead of buying rotisserie chicken. It saves time and reduces waste.
✓ Adjust Cooking Time – If you use fresh broccoli instead of frozen, check your casserole about five minutes sooner to avoid overcooking the veggies.
✓ Cheese Variations – Experiment with different types of cheese like Monterey Jack or mozzarella for unique flavor twists.
✓ Make Ahead – Assemble the casserole in advance and store it covered in the refrigerator. Just add a few extra minutes to the baking time if cooking from chilled.
✓ Let It Rest – Allow the casserole to sit for a few minutes before serving. This helps the dish set and will make serving easier.
What Makes This Recipe Work
- This Chicken Broccoli Rice Cheese Casserole works well because the ingredients meld together beautifully during baking. The cream of mushroom soup and sour cream create a creamy base, while the cheese melts into gooey perfection.
- The combination of tender chicken, fluffy rice, and vibrant broccoli provides a range of textures. You get creaminess from the sauce, bite from the broccoli, and crunch from the Corn Flakes topping.
- Baking it all in one dish enhances the flavors, allowing each ingredient to infuse into one another. This harmonious cooking method results in a comforting meal that feels homey and satisfying.
Frequently Asked Questions About Chicken Broccoli Rice Cheese Casserole
Yes, you can use brown rice, but it is important to note that it needs more cooking time and liquid. Make sure to adjust accordingly to ensure it cooks through in the casserole.
Your casserole is done when the cheese is melted, bubbly, and slightly golden on top. A knife inserted into the center should come out warm, indicating that the interior is heated properly.
Absolutely! You can prepare the casserole and store it in the refrigerator for a day or two before baking. Just remember to cover it to prevent it from drying out.
If your Corn Flakes are soggy, it might be due to covering the casserole too tightly. Try baking uncovered or add the topping in the last few minutes of baking to keep it crispy.
This casserole pairs well with a simple green salad or steamed vegetables. You can also serve it with crusty bread to soak up the creamy sauce.

Chicken Broccoli Rice Cheese Casserole
Ingredients
- 2 cups Diced rotisserie chicken or cooked chicken breasts
- 1 cup Long grain white rice
- 12 ounces Frozen broccoli florets or fresh broccoli florets
- 10.5 ounces Cream of mushroom soup
- ½ cup Sour cream
- 1 ½ cups Shredded sharp cheddar cheese (divided)
- 1 cup Crushed Corn Flakes
- 2 tablespoons Butter (melted)
Instructions
- Preheat your oven to 350°F.
- Grease a 13x9 baking dish with cooking spray or butter.
- In the greased baking dish, stir together the diced chicken, cooked rice, broccoli, cream of mushroom soup, sour cream, and 1 cup of shredded cheddar cheese until thoroughly combined.
- Sprinkle the remaining ½ cup of shredded cheddar cheese over the casserole mixture.
- Top it off with crushed Corn Flakes and drizzle melted butter over the top.
- Bake the casserole for about 30-35 minutes until the top is golden and the cheese is bubbly. Let it cool slightly before serving.
Notes
- Use leftover chicken for convenience, adjust cooking time if using fresh broccoli, and feel free to experiment with different types of cheese.
- Assemble in advance and store covered in the refrigerator to save time before baking.
- Allow the casserole to rest before serving to help it set.





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