Looking for a quick, healthy, and comforting dinner? This Easy Chicken Broccoli Rice Casserole is your answer. Made with tender chicken, fresh broccoli, and wholesome brown rice, this casserole is loaded with protein, fiber, and flavor—perfect for busy weeknights when you want something nourishing yet simple. Bonus: it’s gluten-free and packed with vegetables, making it a family-friendly favorite.
If you enjoy this dish, you might also like my Chicken Broccoli Pasta Casserole for another twist on this classic comfort food.
Why You’ll Love This Healthy Chicken Broccoli Casserole
Quick & Easy: From prep to oven-ready, this casserole takes just 40 minutes, with minimal hands-on time.
Nutritious: Swapping out traditional cream of mushroom soup for a homemade cheese sauce keeps it lower in fat and higher in nutrients. Brown rice adds fiber and complex carbs, while chicken and broccoli boost protein and vitamins.
Kid-Friendly: Even picky eaters love it! The creamy sauce and melted cheese make veggies and rice irresistible.
Customizable: Don’t have brown rice? Quinoa or other whole grains work beautifully. Prefer a different cheese? Try mozzarella, Colby, or even a sprinkle of parmesan.
Ingredients for Chicken Broccoli Rice Casserole
- 1 pound chicken breasts, cut into bite-sized pieces
- 2 cups cooked brown rice (or substitute quinoa)
- 6 cups fresh broccoli florets
Sauce Ingredients:
- 2 tablespoons olive oil, divided
- 1 small onion, diced
- 2 tablespoons gluten-free flour (or all-purpose)
- 2 cups milk (dairy or non-dairy)
- ¼ teaspoon garlic powder
- ¼ teaspoon onion powder
- ½ teaspoon dry mustard powder
- ½ teaspoon smoked paprika
- ½ teaspoon kosher salt, or to taste
- ¼ teaspoon ground black pepper
- 2 cups cheddar cheese, shredded and divided
- 2 tablespoons fresh curly parsley, chopped for garnish
How to Make Chicken Broccoli Rice Casserole
Step 1: Prepare the Oven and Chicken
Preheat your oven to 400°F (200°C). Season the chicken cubes with a little salt and pepper, then drizzle with 1 tablespoon of olive oil. Toss to coat evenly. Arrange the chicken in a single layer in a 2-quart casserole dish to ensure even cooking. Bake for 10 minutes.
Step 2: Make the Cheese Sauce
While the chicken bakes, prepare the sauce. Heat the remaining tablespoon of olive oil in a skillet over medium heat. Add the diced onion and sauté until soft and translucent. Sprinkle in the flour and whisk for about a minute to cook out the raw flavor.
Slowly pour in the milk while whisking continuously. Once the mixture starts to bubble, add garlic powder, onion powder, dry mustard, smoked paprika, salt, and pepper. Reduce heat and let it simmer gently until the sauce thickens. Remove from heat and stir in 1½ cups of cheddar cheese until fully melted and smooth.
Step 3: Combine Ingredients
Remove the casserole dish from the oven. Layer the cooked brown rice evenly on the chicken, followed by the broccoli florets. Pour the prepared cheese sauce over the top, gently tossing to coat all the ingredients. Sprinkle the remaining ½ cup of cheddar cheese on top.
Step 4: Bake Until Golden
Return the casserole to the oven and bake for 20 more minutes, until the broccoli is tender and the cheese is golden and bubbly. Remove from the oven, sprinkle with fresh parsley, and serve warm.
Recipe Tips & Variations
- Brown Rice: Cooking the rice beforehand is key. Quick-cook rice or pre-cooked packets work perfectly. Swap with quinoa for extra protein and a slightly nutty flavor.
- Broccoli: Use fresh florets for the best texture, or thaw frozen broccoli in a colander before adding. Try cutting florets to uniform sizes for even baking.
- Onion: Sweet or yellow onions work best in this dish.
- Milk & Cheese: Use any milk you like, including non-dairy options. Cheddar cheese can be swapped for mozzarella, Colby, or parmesan. For a lighter casserole, use reduced-fat cheese or omit some cheese entirely.
- Storage: Store leftovers in an airtight container in the fridge for 3–4 days.
- Freezing: After assembling, freeze the casserole in an airtight container or tightly wrapped in foil for up to 3 months. Thaw overnight in the fridge and bake as directed.
What to Serve with Chicken Broccoli Casserole
This casserole pairs beautifully with simple, fresh sides such as:
- Healthy Potato Salad
- Mixed Berry Fruit Salad
- Green Bean Tomato Salad
- Homemade Dinner Rolls
- Italian Chopped Salad
Easy Chicken Broccoli Rice Casserole – A Healthy Weeknight Meal
- Total Time: 40 min
Ingredients
Chicken & Rice:
1 pound chicken breasts, cut into bite-sized cubes
2 cups cooked brown rice (or quinoa)
6 cups fresh broccoli florets
Cheese Sauce:
2 tablespoons olive oil, divided
1 small onion, diced
2 tablespoons gluten-free flour (or all-purpose)
2 cups milk (dairy or non-dairy)
¼ teaspoon garlic powder
¼ teaspoon onion powder
½ teaspoon dry mustard powder
½ teaspoon smoked paprika
½ teaspoon kosher salt, or to taste
¼ teaspoon ground black pepper
2 cups cheddar cheese, shredded and divided
Garnish:
2 tablespoons fresh curly parsley, chopped
Instructions
- Preheat Oven: Set oven to 400°F (200°C).
- Prepare Chicken: Season chicken with salt and pepper; drizzle 1 tbsp olive oil, toss to coat, and arrange in a 2-quart casserole dish in a single layer. Bake 10 minutes.
- Make Sauce: Heat remaining 1 tbsp oil in a skillet, sauté onion until translucent. Add flour and whisk 1 minute. Slowly pour milk, whisking, then add spices. Simmer until thickened. Remove from heat and stir in 1½ cups cheese until melted.
- Assemble Casserole: Layer rice and broccoli over chicken. Pour cheese sauce on top and toss gently. Sprinkle remaining ½ cup cheese over the top.
- Bake: Return to oven for 20 minutes, until broccoli is tender and cheese is golden and bubbly.
- Serve: Garnish with parsley and serve warm.
Notes
- Rice/Quinoa: Pre-cook rice or use pre-cooked packs. Quinoa works as a nutritious alternative.
- Broccoli: Use fresh or thawed frozen florets. Cut to uniform size for even cooking.
- Milk & Cheese: Non-dairy milk can be used. Swap cheddar for mozzarella, Colby, or parmesan. For a lighter casserole, reduce cheese or use low-fat options.
- Onion: Sweet or yellow onion provides the best flavor.
- Storage: Store in airtight container in the fridge for 3–4 days.
- Freezing: Assemble and freeze in airtight container or foil for up to 3 months. Thaw overnight and bake as directed.
- Prep Time: 10 min
- Cook Time: 30 min
