Creamy Chicken Broccoli Casserole: the ultimate comfort food that's both satisfying and surprisingly simple to make! Imagine tender chicken and vibrant broccoli florets embraced in a luscious, creamy sauce, all topped with a golden, bubbly crust. Are you ready to experience a dish that will warm you from the inside out?
Casseroles, in general, have a long and storied history, evolving from humble peasant fare to beloved family staples. They represent resourcefulness and the joy of bringing people together around a shared meal. While the exact origins of Creamy Chicken Broccoli Casserole are a bit hazy, its popularity exploded in the mid-20th century, coinciding with the rise of convenience cooking and the desire for easy, crowd-pleasing dishes.
What makes this casserole so irresistible? It's the perfect combination of textures and flavors. The creamy sauce is rich and decadent, while the broccoli provides a welcome burst of freshness and a slight bite. The chicken adds protein and heartiness, making it a complete and fulfilling meal. Plus, it's incredibly versatile! You can easily customize it with different cheeses, vegetables, or toppings to suit your preferences. Whether you're looking for a quick weeknight dinner or a comforting dish to share with friends and family, this Creamy Chicken Broccoli Casserole is guaranteed to be a hit!

Ingredients:
- For the Chicken:
- 2 lbs boneless, skinless chicken breasts
- 1 tablespoon olive oil
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 teaspoon garlic powder
- 1/4 teaspoon paprika
- For the Broccoli:
- 1 large head of broccoli, cut into florets (about 6 cups)
- 2 tablespoons olive oil
- 1/4 teaspoon salt
- 1/4 teaspoon black pepper
- For the Creamy Sauce:
- 1/2 cup butter
- 1/2 cup all-purpose flour
- 3 cups milk (whole or 2%)
- 1 cup chicken broth
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/4 teaspoon nutmeg
- 1 cup shredded cheddar cheese
- 1/2 cup grated Parmesan cheese
- 1/4 cup sour cream
- For the Topping (Optional):
- 1 cup crushed Ritz crackers (about 30 crackers)
- 4 tablespoons melted butter
Preparing the Chicken
Okay, let's start with the chicken. We want it cooked and ready to mingle with the broccoli and creamy sauce. I usually prefer to bake my chicken for this casserole, but you can also pan-fry or even use leftover rotisserie chicken to save time!
- Preheat the oven: First things first, preheat your oven to 375°F (190°C).
- Prepare the chicken: If your chicken breasts are thick, I recommend pounding them to an even thickness (about 1/2 inch). This helps them cook evenly and quickly. You can place the chicken breasts between two sheets of plastic wrap and use a meat mallet or rolling pin to gently pound them.
- Season the chicken: In a small bowl, combine the salt, pepper, garlic powder, and paprika. Sprinkle this mixture evenly over both sides of the chicken breasts. Make sure every inch is covered!
- Bake the chicken: Heat the olive oil in an oven-safe skillet over medium-high heat. Sear the chicken breasts for about 2-3 minutes per side, until lightly browned. This step isn't about fully cooking the chicken, just about getting some nice color and flavor on the outside.
- Finish baking: Transfer the skillet to the preheated oven and bake for 15-20 minutes, or until the chicken is cooked through and the internal temperature reaches 165°F (74°C). You can use a meat thermometer to check the temperature.
- Cool and dice: Once the chicken is cooked, remove it from the oven and let it cool slightly. Then, dice the chicken into bite-sized pieces. Set aside.
Preparing the Broccoli
Next up, let's get the broccoli ready. I like to roast my broccoli because it brings out its natural sweetness and gives it a slightly crispy texture. But if you prefer, you can steam or blanch it instead.
- Preheat the oven: Preheat your oven to 400°F (200°C).
- Prepare the broccoli: Wash the broccoli thoroughly and cut it into florets. Make sure the florets are roughly the same size so they cook evenly.
- Season the broccoli: In a large bowl, toss the broccoli florets with the olive oil, salt, and pepper. Make sure the broccoli is evenly coated with the oil and seasonings.
- Roast the broccoli: Spread the broccoli florets in a single layer on a baking sheet. Roast for 15-20 minutes, or until the broccoli is tender-crisp and slightly browned. Keep an eye on it, as ovens can vary. You want it tender, but not mushy.
- Set aside: Remove the broccoli from the oven and set aside.
Making the Creamy Sauce
Now for the star of the show the creamy, cheesy sauce! This is what brings everything together and makes this casserole so comforting and delicious. Don't be intimidated by the roux; it's easier than you think!
- Melt the butter: In a large saucepan, melt the butter over medium heat.
- Make the roux: Whisk in the flour and cook for 1-2 minutes, stirring constantly. This creates a roux, which is the base for our creamy sauce. Be sure to cook it long enough to get rid of the raw flour taste, but don't let it brown too much.
- Add the liquids: Gradually whisk in the milk and chicken broth, making sure to whisk constantly to prevent lumps from forming.
- Simmer and thicken: Bring the mixture to a simmer, stirring occasionally. Reduce the heat to low and simmer for 5-7 minutes, or until the sauce has thickened slightly. It should be thick enough to coat the back of a spoon.
- Season the sauce: Stir in the salt, pepper, and nutmeg. Taste and adjust the seasonings as needed.
- Add the cheese: Remove the saucepan from the heat and stir in the cheddar cheese and Parmesan cheese until melted and smooth.
- Stir in the sour cream: Gently stir in the sour cream until it's fully incorporated. This adds a lovely tang and richness to the sauce.
Assembling the Casserole
We're almost there! Now it's time to put everything together and bake our casserole to golden perfection.
- Preheat the oven: Preheat your oven to 350°F (175°C).
- Combine the ingredients: In a large bowl, combine the diced chicken, roasted broccoli, and creamy sauce. Gently stir everything together until well combined.
- Transfer to a baking dish: Pour the mixture into a greased 9x13 inch baking dish.
- Prepare the topping (optional): If you're using the Ritz cracker topping, crush the Ritz crackers in a resealable bag or food processor. In a small bowl, combine the crushed crackers with the melted butter.
- Add the topping: Sprinkle the cracker mixture evenly over the top of the casserole.
- Bake the casserole: Bake for 20-25 minutes, or until the casserole is bubbly and the topping is golden brown.
- Let it rest: Remove the casserole from the oven and let it rest for 5-10 minutes before serving. This allows the sauce to thicken slightly and prevents it from being too runny.
Tips and Variations
- Cheese Variations: Feel free to experiment with different types of cheese in the sauce. Gruyere, Monterey Jack, or even a little bit of pepper jack would be delicious!
- Vegetable Additions: You can add other vegetables to the casserole, such as sliced mushrooms, chopped onions, or diced bell peppers. Sauté them before adding them to the mixture.
- Make it Gluten-Free: To make this casserole gluten-free, use gluten-free flour in the sauce and gluten-free crackers for the topping.
- Make it Ahead: You can assemble the casserole ahead of time and store it in the refrigerator for up to 24 hours. Add the topping just before baking.
- Freezing Instructions: This casserole can be frozen for up to 3 months. Let it cool completely before wrapping it tightly in plastic wrap and then foil. Thaw it in the refrigerator overnight before baking. You may need to add a few extra minutes to the baking time.

Conclusion:
This Creamy Chicken Broccoli Casserole isn't just another weeknight dinner; it's a warm, comforting hug on a plate, and trust me, you absolutely need this in your recipe repertoire. The combination of tender chicken, perfectly cooked broccoli, and that unbelievably creamy, cheesy sauce is simply irresistible. It's the kind of dish that disappears quickly, leaving everyone satisfied and asking for seconds. But what truly elevates this casserole to must-try status is its versatility. It's incredibly adaptable to your preferences and whatever you have on hand. Feeling adventurous? Add a pinch of red pepper flakes for a subtle kick. Want to sneak in some extra veggies? Sautéed mushrooms or chopped bell peppers would be fantastic additions. You could even swap out the cheddar cheese for a different variety, like Gruyere or Monterey Jack, to create a unique flavor profile. And let's talk serving suggestions! While this casserole is delicious on its own, it pairs beautifully with a simple side salad or some crusty bread for soaking up all that delicious sauce. For a heartier meal, serve it over rice or egg noodles. If you're looking for a lighter option, try serving it with a side of steamed asparagus or green beans. The possibilities are endless! I know what you're thinking: "Another casserole recipe? Do I really need it?" And my answer is a resounding YES! This Creamy Chicken Broccoli Casserole is more than just a recipe; it's a solution to those busy weeknights when you need a quick, easy, and satisfying meal. It's a crowd-pleaser that even the pickiest eaters will enjoy. It's a blank canvas for your culinary creativity. So, what are you waiting for? Preheat that oven, gather your ingredients, and get ready to experience the magic of this incredible casserole. I promise you won't be disappointed. And the best part? It's so easy to make, even a beginner cook can whip it up with confidence. Don't be afraid to experiment with different variations and make it your own. Maybe you'll add some crispy bacon bits on top, or perhaps you'll use rotisserie chicken for an even quicker preparation. Whatever you do, I encourage you to have fun with it and create a casserole that your family will love. Once you've tried this recipe, I'd absolutely love to hear about your experience! Did you make any modifications? What did your family think? Share your photos and comments in the section below. Your feedback is invaluable and helps other readers discover the joy of this amazing Creamy Chicken Broccoli Casserole. Happy cooking! I am confident that this will become a family favorite.Creamy Chicken Broccoli Casserole: The Ultimate Comfort Food Recipe

A comforting and cheesy Chicken Broccoli Casserole featuring tender chicken, roasted broccoli, and a rich, creamy sauce, topped with optional buttery Ritz crackers.
Ingredients
- 2 lbs boneless, skinless chicken breasts
- 1 tablespoon olive oil
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 teaspoon garlic powder
- 1/4 teaspoon paprika
- 1 large head of broccoli, cut into florets (about 6 cups)
- 2 tablespoons olive oil
- 1/4 teaspoon salt
- 1/4 teaspoon black pepper
- 1/2 cup butter
- 1/2 cup all-purpose flour
- 3 cups milk (whole or 2%)
- 1 cup chicken broth
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/4 teaspoon nutmeg
- 1 cup shredded cheddar cheese
- 1/2 cup grated Parmesan cheese
- 1/4 cup sour cream
- 1 cup crushed Ritz crackers (about 30 crackers)
- 4 tablespoons melted butter
Instructions
- Preheat oven to 375°F (190°C).
- Pound chicken breasts to 1/2 inch thickness.
- Combine salt, pepper, garlic powder, and paprika. Sprinkle over chicken.
- Heat olive oil in an oven-safe skillet over medium-high heat. Sear chicken for 2-3 minutes per side.
- Bake for 15-20 minutes, or until internal temperature reaches 165°F (74°C).
- Cool and dice into bite-sized pieces.
- Preheat oven to 400°F (200°C).
- Wash and cut broccoli into florets.
- Toss broccoli with olive oil, salt, and pepper.
- Spread on a baking sheet and roast for 15-20 minutes, or until tender-crisp and slightly browned.
- Melt butter in a large saucepan over medium heat.
- Whisk in flour and cook for 1-2 minutes, stirring constantly.
- Gradually whisk in milk and chicken broth, whisking constantly.
- Bring to a simmer, stirring occasionally. Reduce heat and simmer for 5-7 minutes, or until thickened.
- Stir in salt, pepper, and nutmeg.
- Remove from heat and stir in cheddar and Parmesan cheese until melted.
- Gently stir in sour cream.
- Preheat oven to 350°F (175°C).
- In a large bowl, combine diced chicken, roasted broccoli, and creamy sauce.
- Pour into a greased 9x13 inch baking dish.
- If using topping, crush Ritz crackers and combine with melted butter.
- Sprinkle cracker mixture over the casserole.
- Bake for 20-25 minutes, or until bubbly and topping is golden brown.
- Let rest for 5-10 minutes before serving.
Notes
- Cheese Variations: Experiment with Gruyere, Monterey Jack, or pepper jack.
- Vegetable Additions: Add sautéed mushrooms, onions, or bell peppers.
- Gluten-Free: Use gluten-free flour and crackers.
- Make it Ahead: Assemble and refrigerate for up to 24 hours. Add topping before baking.
- Freezing Instructions: Freeze for up to 3 months. Thaw in refrigerator overnight before baking.