Chicken Broccoli Alfredo

Chicken Broccoli Alfredo is a creamy pasta dish made with tender chicken, fresh broccoli, and a rich Parmesan cheese sauce. It is filling, easy to prepare, and works well for both busy weeknights and relaxed family dinners. The combination of pasta, chicken, and vegetables makes it a complete meal without the need for several side dishes.

This recipe uses a homemade Alfredo sauce with butter, cream, garlic, and Parmesan cheese. Everything comes together in a baking dish, where the cheese melts into the sauce and creates a golden top. You can use rotini, penne, or your favorite short pasta, along with freshly cooked or leftover chicken, to make dinner a little easier.

Recipe Overview

What You Can Do Better

The best part of making Chicken Broccoli Alfredo at home is that you can adjust the sauce, vegetables, and seasonings to suit your taste. A homemade sauce gives you more control over the flavor than a ready-made jar, while freshly grated Parmesan adds a deeper, cheesier taste.

For better texture, cook the pasta just until al dente because it will soften a little more in the oven. Steam the broccoli until it is slightly tender but still bright green, rather than cooking it until soft. Using warm chicken and broccoli also helps the sauce coat everything evenly. Finally, broil the casserole briefly at the end for a lightly browned cheese topping, keeping a close eye on it so the cheese does not burn.

Ingredients for Chicken Broccoli Alfredo

These ingredients make six generous servings. For the best results, measure everything before you start cooking.

For the Pasta and Filling

• 12 ounces rotini pasta or penne pasta
• 2 cups cooked chicken breast, cut into bite-sized cubes
• 2 cups fresh broccoli florets
• 2 cups shredded mozzarella cheese

For the Homemade Alfredo Sauce

• 3 tablespoons unsalted butter
• 3 tablespoons all-purpose flour
• 2 1/2 cups half-and-half, preferably at room temperature
• 4 ounces cream cheese, softened
• 1/2 cup freshly grated Parmesan cheese
• 1 teaspoon garlic powder
• 1 teaspoon salt, or to taste
• 1/4 teaspoon ground black pepper

Also Read: Broccoli Pesto Pasta

How to Make Chicken Broccoli Alfredo

Step 1: Prepare the Oven and Baking Dish

Preheat your oven to 375°F (190°C). Lightly grease a 9-by-13-inch baking dish with butter or cooking spray and set it aside. If your chicken is not already cooked, cook it separately until it reaches an internal temperature of 165°F (74°C), then cut it into bite-sized pieces.

Step 2: Cook the Pasta

Bring a large pot of salted water to a boil and cook the pasta according to the package directions, stopping just before it becomes completely tender. Drain it well and set it aside. Avoid overcooking the pasta because it will continue to soften while baking.

Step 3: Steam the Broccoli

Steam the broccoli florets for about 3 to 4 minutes, or until they are just beginning to soften. They should still have a little firmness and a bright green color. Drain any excess water and set the broccoli aside. This helps prevent the finished casserole from becoming watery.

Step 4: Make the Alfredo Sauce

Melt the butter in a medium saucepan over medium heat. Whisk in the flour and cook for about one minute, stirring constantly to form a smooth paste. Slowly pour in the half-and-half while whisking to prevent lumps from forming.

Allow the sauce to cook gently for a few minutes until it begins to thicken. Reduce the heat to low and stir in the softened cream cheese and grated Parmesan. Continue stirring until both cheeses have melted and the sauce is smooth. Add the garlic powder, salt, and black pepper. If the sauce becomes too thick, add a small splash of half-and-half and stir until it reaches a creamy consistency.

Step 5: Combine the Ingredients

Add the cooked pasta, chicken, and steamed broccoli to a large mixing bowl. Pour the Alfredo sauce over the mixture and stir gently until everything is evenly coated. Make sure the sauce reaches the bottom of the bowl so that the pasta does not remain dry.

Step 6: Assemble the Casserole

Transfer the pasta mixture to the prepared baking dish and spread it into an even layer. Sprinkle the shredded mozzarella cheese over the top, covering the surface as evenly as possible. The mozzarella melts into a stretchy, golden layer while the Parmesan in the sauce provides a savory flavor.

Step 7: Bake and Serve

Bake uncovered for approximately 15 minutes, or until the casserole is hot and the cheese has melted. For a more golden top, switch the oven to broil for another 2 to 3 minutes, watching carefully to prevent burning. Let the casserole rest for about 5 minutes before serving so the sauce can settle slightly. Serve warm, with extra Parmesan or freshly ground black pepper if desired.

Also Read: Chicken Alfredo Garlic Bread

Tips for the Best Chicken Broccoli Alfredo

• Use cooked chicken: Leftover roasted chicken or rotisserie chicken saves time and works well in this recipe.
• Do not overcook the pasta: Slightly firm pasta holds its shape better after baking.
• Use room-temperature dairy: Let the cream cheese soften and take the chill off the half-and-half to help the sauce blend smoothly.
• Grate Parmesan fresh: Freshly grated cheese usually melts more smoothly than some pre-shredded varieties.
• Keep the sauce gentle: Avoid boiling the sauce vigorously after adding the cheese, as excessive heat can make it grainy.
• Watch the broiler: The cheese can brown quickly, so stay nearby during the final few minutes.
• Add extra vegetables: Spinach, peas, or sliced mushrooms can be added for more variety.

Variations You Can Try

Chicken Broccoli Alfredo with Penne

Replace the rotini with penne pasta. Its hollow shape holds the creamy sauce well, making it a good option for baked pasta dishes.

Chicken Broccoli Alfredo with Fresh Garlic

For a stronger garlic flavor, sauté one or two minced garlic cloves in the melted butter for about 30 seconds before adding the flour. Do not let the garlic brown, as it can develop a bitter taste.

Lighter Chicken Broccoli Alfredo

Use a smaller amount of mozzarella and replace some of the half-and-half with milk. The sauce will be less rich, but it will still coat the pasta and vegetables. Keep in mind that changing the ingredients will also change the nutritional values.

Spicy Chicken Broccoli Alfredo

Add a pinch of red pepper flakes or a little cayenne pepper to the sauce for gentle heat. Black pepper also works well if you want extra seasoning without making the dish too spicy.

Also Read: Alfredo Fettuccine Pasta Recipe

What to Serve with Chicken Broccoli Alfredo

Because this casserole already includes pasta, chicken, and vegetables, simple sides work best. A green salad with a light vinaigrette balances the richness of the sauce. Garlic bread or toasted baguette slices are good choices if you want something to scoop up the extra Alfredo sauce. Roasted carrots or green beans also make an easy vegetable side.

How to Store and Reheat Leftovers

Refrigerator

Allow the casserole to cool slightly, then transfer leftovers to an airtight container. Refrigerate within two hours of cooking and use within 3 to 4 days. For the best texture, store individual portions so they are easy to reheat.

Freezer

You can freeze the casserole in an airtight, freezer-safe container for up to 2 to 3 months. Cream-based sauces may separate slightly after freezing, and the broccoli may become softer. Thaw overnight in the refrigerator before reheating when possible.

Reheating

Reheat individual portions in the microwave in short intervals, stirring when possible. For larger portions, cover the casserole with foil and warm it in an oven at 325°F (165°C) until heated through. Add a splash of milk or half-and-half if the sauce seems too thick. Reheat leftovers to an internal temperature of 165°F (74°C).

Nutrition Information

The following values are estimates for one serving when the recipe is divided into six portions. Actual nutrition will vary depending on the brands used, the amount of salt added, and the type of chicken, pasta, and dairy products selected.

Nutrition disclaimer: These figures are estimates, not laboratory-tested values. Individual servings and ingredient substitutions can change the final nutritional content.

Also Read: Pasta Alfredo Sauce Recipe

Frequently Asked Questions

Can I make Chicken Broccoli Alfredo ahead of time?

Yes. Assemble the pasta, chicken, broccoli, and sauce in the baking dish, then cover and refrigerate for up to 24 hours before baking. For a chilled casserole, allow extra baking time and check that the center is thoroughly heated before serving.

Can I use frozen broccoli?

Yes. Thaw frozen broccoli and drain it thoroughly before mixing it with the pasta. Removing excess water helps keep the Alfredo sauce thick and creamy.

Can I use store-bought Alfredo sauce?

Yes. A good-quality prepared Alfredo sauce can save time. Warm it gently and season to taste before combining it with the chicken, broccoli, and pasta. The flavor and nutrition will differ from the homemade version.

How do I keep Alfredo sauce from becoming too thick?

Add a small amount of warm milk or half-and-half and stir gently until the sauce loosens. Pasta absorbs liquid as it sits, so you may need to add a little more when reheating leftovers.

What pasta works best for this recipe?

Rotini and penne are excellent choices because they hold the sauce well and are easy to serve in a casserole. Fettuccine, ziti, or other short pasta shapes can also work.

How can I tell when the casserole is ready?

The cheese should be melted, the edges should be bubbling, and the center should be hot. If you are checking food safety, ensure the chicken and reheated leftovers reach 165°F (74°C).