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This easy and delicious Chicken Broccoli Alfredo Casserole recipe is perfect for busy weeknights. With tender chicken, pasta, broccoli and creamy Alfredo sauce topped with lots of cheese, this dish is sure to become a family favorite.

chicken and broccoli Alfredo casserole on a serving spoon.

Easy Chicken Alfredo Bake

The first time I made this easy pasta bake, I cooked completely from scratch. The next time, I grabbed a rotisserie chicken and a jar of sauce from the grocery store, and this easy meal came together in minutes, with hardly any prep!

My whole family loves this easy casserole — even the picky eater! It’s delicious comfort food with plenty of leftovers for later. Definitely my kind of dinner!

Since this is basically a one-dish meal, all you really need for a complete meal is garlic bread or breadsticks. You can definitely throw in a green salad, as well.

rotisserie chicken, penne pasta, Alfredo sauce, cream, broccoli, cheese and seasonings.


There are just a few simple ingredients in this chicken Alfredo casserole. Full amounts are in the printable recipe card below.

  • Rotisserie chicken — or leftover cooked chicken cut into bite-size pieces. You can also bake chicken breasts to use in this recipe.
  • Pasta — I like penne pasta, but any short pasta will work well.
  • Jar of Alfredo sauce — I like Rao’s sauce, but any brand works.
  • Half and Half — or heavy cream for a little extra sauce
  • Broccoli — I like fresh broccoli chopped into small florets, but you can use frozen broccoli if that’s easier.
  • Seasonings — garlic powder, Italian seasoning, black pepper and a pinch of red pepper flakes for a little more flavor
  • Cheese — Parmesan and Mozzarella cheese make this a cheesy casserole.

How to Make Chicken and Broccoli Alfredo Casserole

First, cook the pasta in boiling salted water. Since the pasta will cook longer in the oven, cook it just to al dente. When the pasta is almost done, add the chopped broccoli florets to the boiling water and cook for a couple of minutes to tenderize them.

cook pasta and broccoli in boiling water.

Meanwhile, make the sauce in a medium bowl. Just mix the jarred sauce with the seasonings and half and half until well blended. Then, drain the pasta and broccoli.

stir sauce mixture in mixing bowl.

Mix the cooked pasta, broccoli, sauce, chicken and 1 cup Parm in a prepared baking dish. You can do this in a separate bowl, but it’s easier to use the casserole dish. Then, top with shredded mozzarella cheese and remaining grated Parmesan cheese.

mix casserole ingredients in baking dish.

Cooking Time

Cook the casserole for 25-30 minutes or until it’s hot and bubbly and the cheese is melted. Allow the baked casserole to rest for a few minutes before serving.


Store leftover casserole in an airtight container in your refrigerator for 3-4 days. This chicken bake also freezes well for up to 3 months and reheats easily in the microwave.

baked chicken broccoli Alfredo casserole with mozzarella cheese on the table.

Recipe Variations and Tips

If you want to make this chicken broccoli Alfredo bake from scratch, use leftover chicken or bake chicken breasts to use in this recipe. You can make homemade Alfredo sauce using butter, cream or half and half and grated Parm.

I personally prefer more than 1 jar of sauce to coat the pasta, so I add some half and half. You can also use about 1 and a half jars of sauce if you don’t have any cream.

Make sure to cut the broccoli into smaller pieces with most of the stems removed as it makes eating easier. If you like crunchy broccoli, you can skip boiling it.

More Casserole Recipes

Love comforting casseroles? Try my Tuna Casserole, or Chicken Pot Pie Casserole or Kielbasa Casserole with Egg Noodles next!

5 from 8 votes

Chicken Broccoli Alfredo Casserole Recipe

By: Dee
This easy and delicious Chicken Broccoli Alfredo Casserole recipe is perfect for busy weeknights. With tender chicken, pasta, broccoli and creamy Alfredo sauce topped with lots of cheese, this dish is sure to become a family favorite.
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Servings: 10


  • 1 pound penne pasta
  • 2 cups broccoli florets
  • 3 cups cooked chicken cut into bite-sized pieces
  • 15 oz jar Alfredo sauce
  • 1 cup half and half
  • 2 teaspoons Italian seasoning
  • 1 tsp garlic powder
  • ¼ tsp black pepper
  • pinch red pepper flakes
  • 2 cups grated Parmesan cheese divided
  • 2 cups shredded Mozzarella cheese
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  • Preheat oven to 375℉
  • Grease a 9×13 inch baking dish with non stick spray or olive oil
  • Cook pasta in boiling salted water until almost tender. Add chopped broccoli and cook for 2 more minutes, drain. Pasta should be al dente
  • In a medium mixing bowl, stir the jar of Alfredo sauce, half and half and spices until well combined
  • Mix the cooked pasta, broccoli, chicken, 1 cup Parmesan and sauce in the baking dish until covered with sauce
  • Top with remaining Parmesan cheese and Mozzarella cheese
  • Bake for 25-30 minutes or until casserole is bubbly and cheese is melted



You can use 1 and a half jars of Alfredo sauce instead of adding half and half if desired.
Use frozen broccoli if desired.
Store in airtight container for 3-4 days. Easy to freeze if needed.


Calories: 464kcal, Carbohydrates: 40g, Protein: 27g, Fat: 21g, Saturated Fat: 11g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 6g, Cholesterol: 94mg, Sodium: 657mg, Potassium: 331mg, Fiber: 2g, Sugar: 3g, Vitamin A: 461IU, Vitamin C: 16mg, Calcium: 257mg, Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Main Course
Cuisine: American
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Recipe Rating


  1. Jennifer says:

    Super easy and all the flavors I love. Even the broccoli tasted great since it absorbs the alfredo sauce! Will be making this one often.5 stars

    1. Dee says:

      Awesome! So glad you liked the casserole, Jennifer.