This Creamy Baked Chicken and Broccoli Pasta Casserole is comfort food at its best—rich, cozy, and full of flavor. Tender penne pasta, juicy chicken, and broccoli are all wrapped in a luscious, cheesy alfredo sauce that’s guaranteed to be a crowd favorite. Perfect for weeknight dinners or potlucks!
Course Pasta
Cuisine American
Keyword broccoli chicken pasta bake, chicken broccoli and pasta bake, chicken broccoli pasta bake, chicken broccoli pasta casserole, Creamy Chicken Broccoli Pasta Bake
1 poundbonless chicken thighs or breastcut into chunks
3clovesgarlicchopped
2tablespoonsunsalted butter
5tablespoonsall purpose flour
4 cupswhole milk
1cup heavy cream
3teaspoonsItalian seasoning
4teaspoonssalt, dividedor to taste
½teaspoonground black pepper
1 ½cupsgrated parmesan, divided
1 ½cupsshredded mozzrella
Instructions
Bring a large pot of water to a boil, then add one teaspoon salt and pasta. Stir occasionally and cook for 2 minutes less than the time suggested on the package. Add the broccoli florets and cook for 10 seconds. Drain the pasta and broccoli.
Preheat oven to 350°F and grease a 8x13 inch rectangle baking dish with cooking spray.
Heat olive oil in a large pot over medium-high heat. Add the chicken in a single layer and cook until the bottom is golden brown, 3 to 4 minutes.
Add the garlic and butter, cooking while stirring the chicken for about one minute. Then, stir in the flour and cook, stirring constantly, for 2 minutes.
Add the milk, heavy cream, Italian seasoning, black pepper, and the remaining 3 teaspoons of salt. Stir occasionally and bring the mixture to a boil. After 3 to 4 minutes, the sauce will thicken slightly.
Stir in one cup of the parmesan cheese and stir until cheese melts. Remove pot from heat and stir in the cooked pasta and broccoli.
Transfer to the prepared baking dish and spread evenly. Top with the mozzarella cheese and remaining ½ cup parmesan.
Bake for 25 to 30 minutes, or the top is bubbly and golden. Serve!
Notes
Undercook the pasta by 2 minutes to prevent it from becoming mushy as it bakes.Cut broccoli into large florets.Skip heavy cream and use 5 cups of whole milk.