Get ready to fall in love with your new favorite weeknight dinner. This Chicken and Broccoli Alfredo Bake is the epitome of comfort food—a warm, cheesy, and incredibly satisfying casserole that brings everyone to the table. We combine tender chicken, vibrant broccoli, and perfectly cooked pasta, all tossed in a rich, velvety homemade Alfredo sauce. It’s then baked to golden, bubbly perfection. Forget the jarred stuff; our simple, from-scratch sauce makes all the difference, transforming a classic dish into a truly unforgettable meal.
This recipe is designed for enthusiastic home cooks who appreciate the flavor that comes from using simple, quality ingredients. It’s a guaranteed crowd-pleaser for family dinners, potlucks, or a cozy night in.
Why This Chicken and Broccoli Alfredo Bake is a Must-Try
This isn’t just another pasta bake. This recipe stands out because it masters the essentials. The homemade Alfredo sauce is luxuriously creamy and packed with garlic and Parmesan flavor, clinging perfectly to every noodle. We also ensure the broccoli is cooked just right—tender, but not mushy. It’s the kind of dish that tastes like a restaurant-quality meal but is surprisingly easy to whip up in your own kitchen.

The Key Ingredients for a Perfect Bake
The magic of this dish lies in its simple yet flavorful components. Here’s what you’ll need to bring this creamy casserole to life.
For the Pasta Base
- Pasta: Penne is the ideal choice. Its tube shape and ridges are perfect for catching all that delicious sauce.
- Chicken: Cooked and shredded boneless, skinless chicken breast works best. This is a great way to use up leftovers!
- Broccoli: Fresh broccoli florets provide a vibrant color and a healthy, earthy flavor that cuts through the richness of the sauce.
For the Star of the Show: Homemade Alfredo Sauce
- Butter & Flour: This classic roux forms the base of our sauce, giving it a thick, stable consistency.
- Garlic: Freshly minced garlic is non-negotiable for a truly aromatic sauce.
- Heavy Cream & Milk: A combination of heavy cream and whole milk creates the perfect balance of richness and a velvety smooth texture.
- Parmesan Cheese: For the best flavor and melt, use freshly grated Parmesan cheese. It adds that signature nutty, salty bite.
- Seasoning: A touch of salt, black pepper, and a pinch of nutmeg enhances all the other flavors.
For the Cheesy Topping
- Mozzarella Cheese: Shredded whole-milk mozzarella provides that glorious, bubbly, and golden-brown cheese pull we all love.
How to Make The Best Chicken and Broccoli Alfredo Bake
Follow these simple steps for a flawless, cheesy, and creamy baked pasta dish every single time. It’s easier than you think!
- Preheat and Prep: Start by preheating your oven to 375°F (190°C) and lightly greasing a 9×13 inch baking dish.
- Cook the Pasta and Broccoli: Cook the penne according to package directions until al dente. In the last 3 minutes of cooking, add the broccoli florets to the pasta water to blanch them. Drain everything well and set aside.
- Make the Alfredo Sauce: In a large saucepan or Dutch oven, melt the butter over medium heat. Add the minced garlic and cook for about 30 seconds until fragrant. Whisk in the flour to create a paste (roux) and cook for one minute, stirring constantly.
- Build the Creamy Sauce: Slowly pour in the heavy cream and milk while whisking continuously to prevent lumps. Let the sauce simmer and thicken, which should take about 5-7 minutes.
- Add the Cheese: Remove the sauce from the heat and stir in the freshly grated Parmesan cheese, salt, pepper, and a pinch of nutmeg until the cheese is completely melted and the sauce is smooth.
- Combine Everything: Add the cooked pasta, broccoli, and shredded chicken to the Alfredo sauce. Stir gently until everything is evenly coated in creamy goodness.
- Bake to Perfection: Pour the mixture into your prepared baking dish. Sprinkle the shredded mozzarella cheese evenly over the top. Bake for 20-25 minutes, or until the sauce is bubbly and the cheese is melted and golden brown. For an extra crispy top, broil for the last 1-2 minutes, watching carefully.
- Rest and Serve: Let the Chicken and Broccoli Alfredo Bake rest for a few minutes before serving. This helps the sauce set up. Garnish with fresh parsley if desired.

Tips from a Seasoned Kitchen
A few simple tricks can elevate your pasta bake from good to absolutely amazing.
- Don’t Overcook the Pasta: Since the pasta will continue to cook in the oven, pull it from the water when it’s just shy of al dente. This prevents a mushy final result.
- Freshly Grate Your Cheese: Pre-shredded cheeses are often coated with anti-caking agents that can make your sauce gritty. Grating your own Parmesan and mozzarella ensures a smoother, creamier sauce and better melt.
- Use Rotisserie Chicken: To save time, a store-bought rotisserie chicken is a fantastic shortcut. Just shred the meat and you’re ready to go! If you need another quick chicken dish, these Caesar chicken wraps are a family favorite.
- Don’t Skip the Resting Time: Letting the bake sit for 5-10 minutes after it comes out of the oven is crucial. It allows the sauce to thicken slightly, making it easier to serve.
Delicious Variations to Try
While this recipe is fantastic as is, it’s also wonderfully adaptable. For a different flavor profile, consider this Syrian chicken recipe (coming soon). Or, try one of these simple swaps:
- Add Bacon: For a smoky, salty kick, add some crispy, crumbled bacon to the pasta mixture.
- Spice It Up: A pinch of red pepper flakes in the Alfredo sauce will add a gentle warmth.
- Switch Up the Veggies: Feel free to add sautéed mushrooms, spinach, or sun-dried tomatoes.
- Try a Different Cheese: A blend of mozzarella, provolone, and asiago on top can add a new layer of flavor. For a truly decadent cheese experience, check out our John Legend’s baked mac and cheese (coming soon).
Storing and Reheating Leftovers
This Chicken and Broccoli Alfredo Bake makes for fantastic leftovers. Store any remaining portions in an airtight container in the refrigerator for up to 3-4 days.
To reheat, you can place it in an oven-safe dish, cover with foil, and bake at 350°F (175°C) until warmed through. Alternatively, you can reheat individual portions in the microwave. You may want to add a splash of milk or cream before reheating to loosen the sauce.
Frequently Asked Questions
Absolutely! You can assemble the entire casserole, cover it, and refrigerate it for up to 24 hours before baking. You may need to add 10-15 minutes to the baking time if it’s going into the oven straight from the fridge.
Yes, you can use frozen broccoli. We recommend thawing it and patting it dry before adding it to the dish to avoid releasing excess water into the sauce.
While we highly recommend our simple homemade sauce for the best flavor and texture, you can substitute about 3-4 cups of your favorite high-quality jarred Alfredo sauce in a pinch.
The key is to make a simple roux with butter and flour, then slowly whisk in cream and milk until smooth. The most important tip is to use freshly grated Parmesan cheese and stir it in off the heat to ensure it melts smoothly without becoming grainy.
This dish is a complete meal on its own, but it pairs wonderfully with a simple green salad with a vinaigrette dressing or some warm garlic bread to soak up any extra sauce.
Enjoy This Cheesy Chicken and Broccoli Alfredo Bake!
We know this creamy, cheesy, and comforting Chicken and Broccoli Alfredo Bake will become a staple in your recipe collection. It’s the perfect meal for any occasion, delivering on flavor, simplicity, and pure satisfaction. If you make this recipe, we’d love to see it! Share your creation and be sure to save it to your favorite board on Pinterest.

Chicken and Broccoli Alfredo Bake Recipe

Chicken and Broccoli Alfredo Bake (The Ultimate Comfort Meal)
Ingredients
Equipment
Method
- Preheat oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish.
- Cook penne according to package directions for al dente. In the final 3 minutes of cooking, add the broccoli florets to the pot. Drain well and set aside.
- In a large saucepan, melt butter over medium heat. Sauté the minced garlic for 30 seconds until fragrant. Whisk in the flour and cook for 1 minute, stirring constantly, to form a roux.
- Slowly pour in the heavy cream and milk, whisking constantly to ensure a smooth sauce. Bring to a simmer and cook for 5-7 minutes, until the sauce has thickened.
- Remove the saucepan from the heat. Stir in the grated Parmesan cheese, salt, pepper, and nutmeg until the cheese is fully melted.
- Add the cooked pasta, broccoli, and shredded chicken to the sauce. Stir gently to combine everything thoroughly.
- Pour the mixture into the prepared baking dish and spread evenly. Top with the shredded mozzarella cheese.
- Bake for 20-25 minutes, until the sauce is bubbling and the cheese is golden brown. You can broil for the last 1-2 minutes for extra color if desired.
- Let the bake rest for 5-10 minutes before serving. Garnish with fresh parsley if you like.
Notes
Tip 2: Undercook your pasta by about 1 minute, as it will continue to cook in the oven.
Tip 3: A store-bought rotisserie chicken is a great time-saver for this recipe.




