I’ve kept a jar of Alfredo sauce in my fridge for years because it turns quick dinners into something a little indulgent. This Easy Baked Chicken Alfredo combines shredded rotisserie chicken, tender rigatoni, and broccoli in a creamy sauce, then gratins in the oven for a bubbly, golden finish. It’s fast, feeds a crowd, and feels like a cozy restaurant dish made at home — perfect for weeknights, potlucks, or when you want comfort food without fuss. If you like one-pan bakes, you might also enjoy this baked chicken ricotta meatballs with spinach Alfredo I reference sometimes for inspiration.

Why you’ll love this dish

This casserole-style meal hits a lot of weekday-win checkboxes: it’s quick to assemble, uses a store-bought shortcut (rotisserie chicken), and hides vegetables in a kid-friendly way. The baking step isn’t just for warmth — it gives the top a melty, lightly browned crust that makes the whole dish feel lifted. Make it for a busy weeknight, a casual dinner party, or when you want a low-effort freezer-to-oven option.

“A total crowd-pleaser: creamy sauce, crisp-tender broccoli, and just enough cheese on top to pull everyone to the table.”

If you prefer a tangier poultry option alongside creamy pasta, try a bright roast chicken like this balsamic baked chicken breast recipe as a companion or inspiration.

Step-by-step overview

Before you gather bowls and pans, here’s what happens in the recipe so you know what to expect:

Cook rigatoni in salted boiling water until al dente, adding broccoli for the last 3 minutes.
Drain, reserving about 1 cup of pasta water.
Toss pasta, broccoli, shredded rotisserie chicken, and Alfredo sauce together. Season and fold in cheeses.
Spread into a greased 9×13-inch dish, top with remaining mozzarella, and bake at 375°F (190°C) until bubbly and golden.
Rest, then loosen with reserved pasta water if needed before serving.

This short roadmap makes it easy to multitask — while the pasta cooks, shred the chicken and preheat the oven.

What you’ll need

1 pound rigatoni pasta (or other ridged short pasta like penne)
1 rotisserie chicken, shredded (about 3 cups)
2 cups creamy Alfredo sauce (store-bought or homemade)
1 1/2 cups fresh broccoli florets
1 cup freshly shredded mozzarella cheese
1/2 cup grated Parmesan cheese
1 tablespoon garlic powder
Salt and freshly ground black pepper, to taste

Notes and substitutions:

Swap rigatoni for penne, ziti, or shells. Tubed/ridged shapes hold sauce best.
Use leftover roasted chicken if you don’t have a rotisserie on hand.
For a lighter version, try 3/4 cup of Alfredo combined with 1 cup of low-fat milk, but the bake will be less rich.
For extra veg, stir in frozen peas or sautéed mushrooms before baking.

Step-by-step instructions

Bring a large pot of salted water to a boil. Add the rigatoni and cook according to package directions until al dente. In the last 3 minutes of cooking, add the broccoli florets.
Drain pasta and broccoli, reserving about 1 cup of the pasta water. Set aside.
Preheat the oven to 375°F (190°C).
In a large bowl, combine the drained pasta, broccoli, shredded rotisserie chicken, and Alfredo sauce. Toss until everything is evenly coated.
Sprinkle the garlic powder over the mixture, then season with salt and freshly ground black pepper to taste. Add half of the mozzarella and all of the Parmesan. Gently fold to combine.
Lightly grease a 9×13-inch baking dish. Transfer the pasta mixture into the dish and spread it in an even layer. Sprinkle the remaining mozzarella over the top.
Bake for 20–25 minutes, or until the casserole is hot, bubbly, and the top is golden brown.
Remove from the oven and let rest for 5–10 minutes. If the sauce seems too thick, stir in reserved pasta water a little at a time until you reach the desired consistency. Serve warm.

If you’re short on time, assemble earlier in the day and refrigerate; bake straight from chilled, adding 5–10 minutes to the bake time.

In case you want another weeknight casserole to rotate in, check out this BBQ chicken stuffed baked potatoes for variety.

Best ways to enjoy it

Plate a generous scoop and top with extra grated Parmesan and a crack of black pepper.
Serve alongside a crisp green salad (arugula with lemon vinaigrette pairs nicely) or simple garlic bread.
For a fuller meal, offer roasted cherry tomatoes or a bright vinaigrette-dressed slaw to cut the richness.
Leftovers heat well and make a hearty next-day lunch; add a sprinkle of fresh parsley to refresh the flavors.

Storage and reheating tips

Refrigerate: Store leftovers in an airtight container for up to 3–4 days.
Reheat: Warm individual portions in the microwave, stirring halfway, or reheat gently in a 350°F (175°C) oven covered with foil until heated through (about 15–20 minutes). Add a splash of milk or reserved pasta water to revive the sauce.
Freeze: Portion into freezer-safe containers and freeze up to 2 months. Thaw overnight in the fridge before reheating; you may need to add a little liquid when reheating from thawed to keep the sauce creamy.
Food safety: Always cool casseroles slightly before refrigerating (within 2 hours), and reheat to at least 165°F (74°C) before consuming.

Helpful cooking tips

Salt the pasta water well; it’s your primary seasoning for the pasta itself.
Don’t overcook the rigatoni — it should be slightly firm because it will continue to soften in the oven.
If your Alfredo sauce is very thick, thin it with a splash of milk or some reserved pasta water before mixing with the pasta.
For the best melt and browning, use freshly shredded mozzarella rather than pre-shredded varieties (they contain anti-caking agents).
To make assembly faster, shred the rotisserie chicken in advance and store it in the fridge.

For more time-saving baked chicken ideas and technique tips, I often refer to this easy chicken bake that’s a weeknight favorite.

Also useful: quick shredding tricks, seasoning balances, and leftover ideas from the same million-dollar chicken resource I keep bookmarked.

Creative twists

Add protein or texture: Stir in cooked bacon, Italian sausage, or toasted breadcrumbs on top before baking.
Swap cheeses: Use fontina or provolone with mozzarella for a deeper, nuttier flavor.
Make it spicy: Mix in a pinch of red pepper flakes or a swirl of Sriracha into the Alfredo.
Low-carb: Replace rigatoni with chickpea pasta or use roasted cauliflower florets instead of pasta for a lighter, lower-carb bake.
Green-forward: Fold in wilted spinach or kale for extra nutrients — squeeze out excess liquid before adding.

Common questions

Q: Can I use a different pasta shape?
A: Yes. Any short, ridged shape like penne, ziti, or shells works well; they hold sauce and bread crumbs. Cooking time may vary slightly.

Q: How do I make this dairy-free or vegan?
A: Use a plant-based Alfredo (cashew or cauliflower-based) and vegan mozzarella and Parmesan alternatives. Skip chicken or use a plant-based chicken substitute.

Q: Can I prepare this ahead of time?
A: Yes. Assemble the bake in the dish, cover, and refrigerate for up to 24 hours. Add 5–10 minutes to the bake time when cooking from chilled. For freezing, bake first and freeze portions, or freeze unbaked for up to 2 months (thaw overnight before baking).

Q: My sauce is thin — what should I do?
A: If it’s too thin before baking, add more Parmesan to thicken or simmer gently to reduce. If it’s thin after baking, stir in a little reserved pasta water or a splash of cream to reach the right consistency.

Q: Is it safe to reheat multiple times?
A: Reheat only the portion you plan to eat. Repeated cooling and reheating increases the risk of bacterial growth.

Conclusion

This Easy Baked Chicken Alfredo is a reliable, comforting dish that leverages convenient shortcuts without skimping on flavor. It’s ideal for weeknight dinners, family gatherings, or when you want something indulgent and low-effort. For more inspiration and a video walkthrough of a closely related recipe, see Easy Chicken Alfredo Bake (Recipe + Video). If you’re exploring other casserole-style Alfredo options and reader-tested variations, check out the Chicken Alfredo Casserole Recipe – Allrecipes.