This Chicken and Broccoli Alfredo Bake is the kind of comfort food that vanishes from the table every time: tender seared chicken, al dente pasta, bright broccoli, and a silky Alfredo sauce topped with golden Parmesan. It’s an easy, crowd-pleasing casserole for weeknights, potlucks, or lazy weekends when you want something impressive without fuss. If you like one-dish family dinners, you might also enjoy this crockpot cheesy chicken and broccoli rice for another hands-off option.
Why you’ll love this dish
This recipe hits several home-cooking sweet spots: creamy, comforting, and flexible. It’s simple enough for a weeknight yet rich enough for guests. The sear on the chicken adds flavor depth that store-bought Alfredo alone can’t deliver, while the broccoli lightens the dish and adds color and nutrients.
"Every bite has the right balance of creaminess and texture—my kids love the cheesy top, and I love that it comes together in about an hour." — a happy weeknight cook
Perfect occasions:
- Family dinners when you want a one-dish meal.
- Meal prep — leftovers reheat well.
- Potlucks and casual gatherings because it serves a crowd and travels easily.
How this recipe comes together
Start by seasoning and searing the chicken to build flavor. Cook the pasta just to al dente so it finishes in the oven without getting mushy. Toss hot pasta, broccoli, shredded chicken, and Alfredo sauce together—adding reserved pasta water if the sauce needs loosening—then transfer to a baking dish, top with Parmesan, and bake until bubbly and golden. The resting time after baking lets the sauce settle so it’s saucy but not runny when you serve.
What you’ll need
- 3–4 boneless, skinless chicken breasts (about 1.5 lb) or about 3 cups cooked, shredded chicken
- Salt and freshly ground black pepper, to taste
- 1 tsp garlic powder or 2 cloves minced garlic
- 1–2 tbsp olive oil for searing
- 8 oz penne or rotini pasta
- 2 cups fresh broccoli florets, trimmed into bite-sized pieces (or frozen)
- 2 cups Alfredo sauce (store-bought or homemade)
- 1 cup shredded Parmesan cheese
Notes and substitutions:
- Rotisserie or shredded leftover chicken works great to save time. For a grilled flavor, consider the approach in grilled chicken and broccoli bowls with creamy garlic sauce.
- Use gluten-free pasta if needed and ensure your Alfredo is GF.
- For extra melt and pull, mix 1/2 cup shredded mozzarella with the Parmesan on top.
Step-by-step instructions
- Preheat the oven to 375°F (190°C). Grease a 9×13-inch baking dish.
- Season the chicken breasts on both sides with salt, pepper, and garlic powder (or rub with minced garlic).
- Heat 1–2 tablespoons olive oil in a skillet over medium heat. Sear the chicken 5–7 minutes per side until golden and the internal temperature reaches 165°F (74°C). Remove to a cutting board, let rest 5 minutes, then cut into bite-sized pieces or shred.
- Meanwhile, bring a large pot of salted water to a boil. Cook the pasta until just al dente (check package directions and pull 1–2 minutes early). Reserve 1/4 cup pasta water, then drain.
- If using fresh broccoli, blanch it in the boiling pasta water for 1–2 minutes before draining with the pasta, or toss the florets directly into the last 2–3 minutes of pasta cooking time. If using frozen broccoli, thaw and pat dry.
- In a large bowl, combine the hot pasta, broccoli, chopped chicken, and Alfredo sauce. Toss to coat, adding reserved pasta water a tablespoon at a time if the mixture seems too thick. Taste and adjust salt and pepper.
- Transfer the mixture to the prepared baking dish. Sprinkle the shredded Parmesan evenly over the top.
- Bake for 25–30 minutes until the casserole is bubbling and the cheese on top is golden. For extra browning, finish under the broiler 1–2 minutes—watch closely.
- Remove from the oven and let rest 5 minutes before serving so the sauce sets and slices hold together.
Best ways to enjoy it
Serve this bake straight from the dish with a crisp green salad and crusty bread to mop up sauce. For lighter sides, try:
- Simple arugula salad with lemon vinaigrette
- Roasted cherry tomatoes to add acidity
- Garlic bread or toasted sourdough for crunch
For a heartier plate, pair with sautéed mushrooms or a side of roasted potatoes. To plate nicely, spoon into shallow bowls and top with extra grated Parmesan and a sprinkle of chopped parsley for color.
Storage and reheating tips
- Refrigerator: Store leftovers in an airtight container for 3–4 days.
- Freezer: Freeze in a shallow, freezer-safe container for up to 2 months. Thaw overnight in the refrigerator before reheating.
- Reheating: Oven reheating (covered with foil) at 350°F until warmed through (about 20–25 minutes) preserves texture. For single portions, microwave on medium power in 45–60 second bursts, stirring in between, until steaming hot. Always reheat to an internal temperature of 165°F (74°C) for safety.
Food safety: Cook chicken to 165°F (74°C) and refrigerate leftovers within 2 hours of cooking.
Pro chef tips
- Don’t overcook the pasta. It will finish cooking in the oven and you want some bite left.
- Use the reserved pasta water — its starch helps the Alfredo cling to pasta and creates a silkier bake. Add sparingly.
- Pat chicken dry before searing for a better crust. Dry meat browns more evenly.
- If the casserole looks dry before baking, stir in a splash of milk or half-and-half to loosen the sauce.
- For a creamier top, mix half the Parmesan into the pasta mixture and sprinkle the rest on top so the interior is saucier and the top is gratin-like.
Creative twists
- Vegetarian: Swap chicken for roasted cauliflower and white beans for protein, and use vegetable-based Alfredo.
- Low-carb: Replace pasta with cauliflower florets or a mix of spiralized zucchini and mushrooms.
- Spicy: Stir in 1/2 tsp red pepper flakes or a spoonful of harissa for heat.
- Herby: Fold in chopped fresh basil or tarragon just before serving for brightness.
- Cheesy upgrade: Add 1/2 cup shredded mozzarella or fontina for more melt; finish under the broiler for a bubbly, browned top.
FAQ
Q: Can I use frozen broccoli?
A: Yes. Thaw and pat dry or add frozen florets straight to the hot pasta for the last 2–3 minutes of cooking. Avoid adding too much extra water.
Q: Can I assemble ahead and bake later?
A: Yes. Assemble the casserole, cover tightly, and refrigerate for up to 24 hours before baking. You may need to add a few extra minutes to the bake time if it’s put in cold.
Q: Is store-bought Alfredo okay to use?
A: Absolutely. High-quality jarred Alfredo saves time and works well. For a fresher taste, stir in a little extra garlic, lemon zest, or grated Parmesan before baking.
Q: How long does this take from start to finish?
A: Active prep plus searing and pasta usually takes about 25–30 minutes. Baking adds 25–30 minutes, so plan for 50–60 minutes total.
Q: Can I make this dairy-free?
A: Use a dairy-free Alfredo (cashew-based or cauliflower-based) and a dairy-free shredded cheese for topping. Texture will be slightly different but still satisfying.
Q: How do I know the chicken is done?
A: Use an instant-read thermometer — the thickest part should reach 165°F (74°C). If using shredded rotisserie chicken, ensure it’s reheated to safe temperature when baked.
Chicken and Broccoli Alfredo Bake
- Total Time: 60 minutes
- Yield: 6 servings
- Diet: None
Description
A comforting one-dish casserole featuring tender chicken, al dente pasta, broccoli, and a rich Alfredo sauce topped with melted Parmesan.
Ingredients
- 3–4 boneless, skinless chicken breasts (about 1.5 lb) or about 3 cups cooked, shredded chicken
- Salt and freshly ground black pepper, to taste
- 1 tsp garlic powder or 2 cloves minced garlic
- 1–2 tbsp olive oil for searing
- 8 oz penne or rotini pasta
- 2 cups fresh broccoli florets, trimmed into bite-sized pieces (or frozen)
- 2 cups Alfredo sauce (store-bought or homemade)
- 1 cup shredded Parmesan cheese
Instructions
- Preheat the oven to 375°F (190°C). Grease a 9×13-inch baking dish.
- Season the chicken breasts on both sides with salt, pepper, and garlic powder (or rub with minced garlic).
- Heat 1–2 tablespoons olive oil in a skillet over medium heat. Sear the chicken 5–7 minutes per side until golden and the internal temperature reaches 165°F (74°C). Remove to a cutting board, let rest 5 minutes, then cut into bite-sized pieces or shred.
- Meanwhile, bring a large pot of salted water to a boil. Cook the pasta until just al dente (check package directions and pull 1–2 minutes early). Reserve 1/4 cup pasta water, then drain.
- If using fresh broccoli, blanch it in the boiling pasta water for 1–2 minutes before draining with the pasta, or toss the florets directly into the last 2–3 minutes of pasta cooking time. If using frozen broccoli, thaw and pat dry.
- In a large bowl, combine the hot pasta, broccoli, chopped chicken, and Alfredo sauce. Toss to coat, adding reserved pasta water a tablespoon at a time if the mixture seems too thick. Taste and adjust salt and pepper.
- Transfer the mixture to the prepared baking dish. Sprinkle the shredded Parmesan evenly over the top.
- Bake for 25–30 minutes until the casserole is bubbling and the cheese on top is golden. For extra browning, finish under the broiler 1–2 minutes—watch closely.
- Remove from the oven and let rest 5 minutes before serving so the sauce sets and slices hold together.
Notes
Store leftovers in the refrigerator for 3–4 days or freeze for up to 2 months. Reheat in the oven for best texture.
- Prep Time: 30 minutes
- Cook Time: 30 minutes
- Category: Casserole
- Method: Baking
- Cuisine: American