Healthy Chicken Broccoli Casserole is a wholesome and comforting dish that combines tender chicken, fresh broccoli, and a creamy mushroom sauce, all baked to bubbly perfection. This nutritious family dinner is not only delicious but also a great way to incorporate more vegetables into your meals. With its delightful blend of flavors and textures, this casserole is sure to become a staple in your kitchen.
Why You’ll Love This Healthy Chicken Broccoli Casserole
This dish is a true crowd-pleaser for several reasons. First, it’s a Nutritious Chicken Broccoli Bake that packs a punch of flavor while being incredibly healthy. Second, it’s easy to prepare, making it an ideal Easy Chicken Broccoli Casserole for Dinner. Third, you can whip it up in just one pan, making cleanup a breeze. Fourth, it’s packed with protein thanks to the chicken, and it’s loaded with vitamins from the broccoli. Additionally, using brown rice or riced cauliflower keeps it low-calorie and gluten-free. Finally, this dish is a wonderful Healthy Comfort Food option that everyone in the family will love!
Ingredients for Healthy Chicken Broccoli Casserole
Gather these items:
- 1 tablespoon oil
- 1 lb chicken breasts or thighs, cut into 1-inch pieces
- 4 cups broccoli florets
- 1 small yellow onion, peeled and diced
- 8 ounces sliced white mushrooms
- 2 ½ cups cooked rice or 1 (12 oz) bag frozen riced cauliflower
- 2 tablespoons arrowroot flour
- 4 large garlic cloves, minced
- 1 cup full-fat coconut milk (or other milk)
- ¾ cup broth
- 2 teaspoons dried thyme
- 1 ½ teaspoons fine sea salt
- ¼ teaspoon ground black pepper
- ¼ cup nutritional yeast (optional for cheesy flavor)
How to Make Healthy Chicken Broccoli Casserole Step-by-Step
- Step 1: If using frozen riced cauliflower, lay it out to thaw. Preheat the oven to 400°F (200°C) and generously grease a 9×13 inch casserole dish to prevent sticking.
- Step 2: Heat 1 tablespoon of oil in a large skillet over medium heat. Add the chicken pieces and cook for 4-5 minutes until starting to brown. Then add the broccoli florets and stir together. Continue cooking until the chicken is no longer pink in the center and broccoli is tender but still vibrant, about 5-7 minutes. Transfer this mixture to the prepared casserole dish.
- Step 3: In a large saucepan over medium heat, heat a tablespoon of oil. Add the diced onion and cook until translucent, approximately 2 minutes. Add the sliced mushrooms and cook until soft, about 3-4 minutes. Stir in the arrowroot flour and minced garlic to form a light roux. Slowly whisk in the coconut milk and broth, ensuring no lumps form. Add dried thyme, sea salt, ground black pepper, and optional nutritional yeast. Bring the sauce to a gentle boil, then reduce heat to simmer and cook for 2-3 minutes until slightly thickened. Remove from heat.
- Step 4: Add cooked rice or thawed cauliflower rice to the casserole dish with chicken and broccoli. Pour the prepared mushroom cream sauce evenly over the dish and gently fold everything together until fully combined. Spread the mixture evenly in the casserole dish.
- Step 5: Place the casserole dish in the preheated oven and bake for 20 minutes, or until the edges are bubbly and the top is slightly golden. Once baked, allow the casserole to sit for 5-10 minutes before serving to allow it to set.
Pro Tips for the Perfect Healthy Chicken Broccoli Casserole
Keep these in mind:
- This dish is gluten-free and low-fat.
- You can substitute chicken with turkey for a different flavor.
- For a vegan option, replace chicken with tofu or chickpeas.
- Feel free to add other vegetables like carrots or bell peppers for extra nutrients and flavor.
Best Ways to Serve Healthy Chicken Broccoli Casserole
There are many delightful ways to enjoy your casserole. Serve it with a fresh salad for a complete meal, or pair it with whole grain bread for a hearty touch. Another option is to enjoy it as a Chicken Broccoli Casserole with Brown Rice for added fiber and nutrition.

How to Store and Reheat Healthy Chicken Broccoli Casserole
To store leftovers, keep them in an airtight container in the refrigerator for up to 3 days. When you’re ready to enjoy it again, simply reheat it in the oven at 350°F until warmed through. This dish is perfect for Healthy Chicken and Broccoli Meal Prep, making it a great option for busy weeknights!
Frequently Asked Questions About Healthy Chicken Broccoli Casserole
What’s the secret to perfect Healthy Chicken Broccoli Casserole?
The secret lies in not overcooking the broccoli. It should be tender yet vibrant to maintain a fresh taste. Using high-quality chicken and a creamy sauce also enhances the overall flavor.
Can I make Healthy Chicken Broccoli Casserole ahead of time?
Yes! You can prepare the casserole in advance and store it in the refrigerator. Just bake it fresh before serving for the best texture and flavor.
How do I avoid common mistakes with Healthy Chicken Broccoli Casserole?
Ensure your chicken is cut evenly for consistent cooking. Avoid overbaking to keep the casserole moist. Also, consider adjusting the seasoning based on your taste preferences.
Variations of Healthy Chicken Broccoli Casserole You Can Try
Feel free to experiment with this recipe! You can swap out the chicken for turkey for a leaner option, or try adding other vegetables such as bell peppers or spinach for an extra veggie boost. For a creamy twist, use a Creamy Healthy Chicken Broccoli Bake by adding more coconut milk or a dairy alternative.

For more delicious recipes, check out our latest recipes or try making Cheesy Chicken Noodle Soup for a comforting meal. If you’re looking for a sweet treat, our Mini Cranberry Cheesecakes are perfect for the holidays!
For more information on the health benefits of broccoli, you can visit Healthline.
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Healthy Chicken Broccoli Casserole: 5 Comforting Reasons
- Total Time: 45 minutes
- Yield: 6 servings 1x
- Diet: Gluten Free
Description
This Healthy Chicken Broccoli Casserole is a wholesome and comforting dish that combines tender chicken, fresh broccoli, and a creamy mushroom sauce, all baked to bubbly perfection.
Ingredients
- 1 tablespoon oil
- 1 lb chicken breasts or thighs, cut into 1-inch pieces
- 4 cups broccoli florets
- 1 small yellow onion, peeled and diced
- 8 ounces sliced white mushrooms
- 2 ½ cups cooked rice or 1 (12 oz) bag frozen riced cauliflower
- 2 tablespoons arrowroot flour
- 4 large garlic cloves, minced
- 1 cup full-fat coconut milk (or other milk)
- ¾ cup broth
- 2 teaspoons dried thyme
- 1 ½ teaspoons fine sea salt
- ¼ teaspoon ground black pepper
- ¼ cup nutritional yeast (optional for cheesy flavor)
Instructions
- If using frozen riced cauliflower, lay it out to thaw. Preheat the oven to 400°F (200°C) and generously grease a 9×13 inch casserole dish to prevent sticking.
- Heat 1 tablespoon of oil in a large skillet over medium heat. Add the chicken pieces and cook for 4-5 minutes until starting to brown. Then add the broccoli florets and stir together. Continue cooking until the chicken is no longer pink in the center and broccoli is tender but still vibrant, about 5-7 minutes. Transfer this mixture to the prepared casserole dish.
- In a large saucepan over medium heat, heat a tablespoon of oil. Add the diced onion and cook until translucent, approximately 2 minutes. Add the sliced mushrooms and cook until soft, about 3-4 minutes. Stir in the arrowroot flour and minced garlic to form a light roux. Slowly whisk in the coconut milk and broth, ensuring no lumps form. Add dried thyme, sea salt, ground black pepper, and optional nutritional yeast. Bring the sauce to a gentle boil, then reduce heat to simmer and cook for 2-3 minutes until slightly thickened. Remove from heat.
- Add cooked rice or thawed cauliflower rice to the casserole dish with chicken and broccoli. Pour the prepared mushroom cream sauce evenly over the dish and gently fold everything together until fully combined. Spread the mixture evenly in the casserole dish.
- Place the casserole dish in the preheated oven and bake for 20 minutes, or until the edges are bubbly and the top is slightly golden. Once baked, allow the casserole to sit for 5-10 minutes before serving to allow it to set.
Notes
- This dish is gluten-free and low-fat.
- You can substitute chicken with turkey for a different flavor.
- For vegan option, replace chicken with tofu or chickpeas.
- Feel free to add other vegetables like carrots or bell peppers.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Main Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 320
- Sugar: 3g
- Sodium: 600mg
- Fat: 14g
- Saturated Fat: 7g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 22g
- Fiber: 3g
- Protein: 25g
- Cholesterol: 70mg
Keywords: Healthy Chicken Broccoli Casserole, Chicken Casserole, Gluten Free Casserole