Chicken Broccoli Alfredo Bake Recipe

I serve this creamy chicken and broccoli Alfredo bake and watch picky eaters become plate-cleaners thanks to a secret ingredient that keeps weeknights simple.

I adore this Chicken Broccoli Alfredo Bake because it answers dinner chaos with pure, cheesy aggression. I love when strands of sauce cling to forkfuls and when pockets of mozzarella brown into those irresistible chew spots.

I’m obsessed with the way cooked, shredded chicken stays juicy under that creamy blanket, and the broccoli florets keep a bright snap so the whole thing never feels flat. But it feeds the picky and the hungry without compromise.

And everyone sneaks second helpings while pretending they don’t. No fuss, huge payoff, serious flavor.

This is my go-to for weeknight wins every single time.

Ingredients

• Basically pasta: the comfy base that soaks up all that creamy sauce.
• Plus shredded chicken: adds hearty protein and leftover-friendly convenience.
• Broccoli florets: a fresh green bite that makes it feel less guilty.
• Jarred Alfredo or homemade: the creamy glue that makes everything cozy.
• Heavy cream: makes sauce silkier and richer when you’re making it from scratch.
• Butter: gives sauce a smooth, buttery mouthfeel and that homey taste.
• Garlic: bright, savory punch that keeps the sauce from tasting flat.
• Mozzarella: melty, stringy goodness that you’ll love pulling apart.
• Parmesan: nutty, salty bite that adds real depth to the sauce.
• Salt: brings out flavors so the dish doesn’t taste sleepy.
• Pepper: little heat that keeps things balanced and interesting.
• Italian seasoning: herbal warmth, like a hug from dried oregano and basil.
• Garlic powder optional: extra garlicky kick when you want more oomph.
• Breadcrumbs optional: crunchy topping that gives satisfying texture contrast.
• Parsley optional: fresh green pop that brightens each rich bite.

Ingredient Quantities

• 12 ounces uncooked pasta (penne or rotini)
• 2 cups cooked, shredded chicken (rotisserie or poached)
• 4 cups broccoli florets, steamed until just tender
• 3 cups jarred Alfredo sauce or homemade equivalent
• 1 cup heavy cream, if making sauce from scratch
• 4 tablespoons butter, if making sauce from scratch
• 2 cloves garlic, minced
• 1 1/2 cups shredded mozzarella, divided
• 3/4 cup grated Parmesan, divided
• 1 teaspoon salt, plus more to taste
• 1/2 teaspoon ground black pepper
• 1 teaspoon Italian seasoning or dried oregano
• 1/2 teaspoon garlic powder, optional
• 1/2 cup plain breadcrumbs or panko for topping, optional
• 2 tablespoons chopped fresh parsley for garnish, optional

How to Make this

1. Preheat oven to 375°F. Boil 12 ounces penne or rotini in salted water until just al dente, drain and set aside, do not overcook it or the bake gets mushy.

2. If using homemade sauce, melt 4 tablespoons butter in a medium saucepan over medium heat, add 2 cloves minced garlic and cook about 30 seconds until fragrant, pour in 1 cup heavy cream, whisk and simmer gently 3 to 5 minutes, then stir in 3 cups Alfredo sauce if you want extra body or just use the jarred sauce straight. Season with 1 teaspoon salt, 1/2 teaspoon black pepper, 1 teaspoon Italian seasoning and 1/2 teaspoon garlic powder if using.

3. If using only jarred sauce skip step 2 and simply warm the 3 cups Alfredo sauce in a saucepan with the minced garlic and the same seasonings so it tastes fresh.

4. Steam 4 cups broccoli florets until just tender, about 3 to 4 minutes, then plunge into cold water or rinse with cold to stop cooking and keep the bright green color. Drain well.

5. In a large bowl combine drained pasta, 2 cups cooked shredded chicken, the broccoli, warmed Alfredo sauce, 1 cup of shredded mozzarella, and 1/2 cup grated Parmesan. Taste and add more salt and pepper if needed.

6. Transfer the mixture to a lightly greased 9 by 13 inch baking dish, spreading it evenly so it bakes uniformly.

7. Sprinkle the top with the remaining 1/2 cup Parmesan and 1/2 cup shredded mozzarella. If you want a crunchy topping mix 1/2 cup plain breadcrumbs or panko with a tablespoon of melted butter and sprinkle over the cheese.

8. Bake uncovered for 20 to 25 minutes until bubbly and the top is golden and cheese is melted. If it browns too fast loosely tent with foil for the last few minutes.

9. Let rest 5 to 10 minutes after baking so the sauce sets and it slices better. Garnish with 2 tablespoons chopped fresh parsley for color if you like.

10. Serve warm with extra grated Parmesan at the table. Leftovers store in the fridge up to 3 days and reheat well in the oven or microwave, though the texture changes a bit.

Equipment Needed

1. Large pot for boiling pasta
2. Colander or strainer to drain pasta and broccoli
3. Medium saucepan for the sauce
4. Steamer basket or a second pot with lid to steam broccoli
5. Large mixing bowl to combine everything
6. 9 by 13 inch baking dish, lightly greased
7. Measuring cups and spoons for sauces and seasonings
8. Wooden spoon or silicone spatula for stirring
9. Box grater or microplane for Parmesan
10. Oven mitts and a cooling rack for resting the casserole

FAQ

Chicken Broccoli Alfredo Bake Recipe Substitutions and Variations

• Pasta (12 oz): swap with 12 oz whole wheat pasta for more fiber, or 12 oz gluten free pasta (rice or corn) if you need GF, or 12 oz short egg noodles for a richer bite.
• Cooked shredded chicken (2 cups): use diced ham, rotisserie turkey, or canned tuna drained for an easy protein switch — or try cooked chickpeas for a vegetarian option.
• Jarred Alfredo sauce (3 cups): replace with a quick homemade white sauce made from 1 cup cream, 4 tbsp butter, 2 cloves garlic, and 1 1/2 cups Parmesan, or use a creamy béchamel with extra cheese, or a jarred white pizza sauce if you want a different flavor.
• Broccoli florets (4 cups): trade for steamed cauliflower, chopped asparagus, or a mix of frozen peas and carrots for convenience.

Pro Tips

1) Don’t boil the pasta until it’s soft. Cook it just shy of done, drain but save a cup of the pasta water. If the bake looks dry before serving, stir in a few spoonfuls of that starchy water to loosen the sauce and make it silky again.

2) Shock the broccoli in ice water right after steaming so it stays bright green and crisp. If you skip that it will keep cooking in the oven and turn mushy and dull. Also squeeze out as much water as you can before adding it or the casserole gets watery.

3) Layer your cheeses. Mix some mozzarella and Parmesan into the filling so every bite is cheesy, then put the rest on top to brown. If the top starts to get too dark, tent loosely with foil for the last few minutes so the inside finishes without burning the top.

4) For extra texture and flavor, toast the panko or breadcrumbs in a little butter with a pinch of salt and garlic powder before sprinkling on top. It makes the topping actually crisp, and it holds up better when reheating.