Chicken Broccoli Alfredo Casserole

When it comes to comfort food, nothing beats a warm, hearty dish like Chicken Broccoli Alfredo Casserole. I still remember the first time I made this for my family on a chilly winter evening. The moment I pulled it out of the oven, the aroma of cream and cheese wafted through the house, instantly warming our hearts as much as it warmed the kitchen. One bite of the creamy sauce enveloping tender pieces of chicken and fresh broccoli, and we were hooked. It quickly became a staple at our dinner table, perfect for those cozy nights when you just want something that feels like a warm hug. Whether it’s a family gathering or just a weeknight dinner, this dish never fails to impress.

What You Need for Chicken Broccoli Alfredo Casserole

Gathering the right ingredients is the first step to making a fantastic Chicken Broccoli Alfredo Casserole. Each ingredient plays a crucial role in creating that creamy, comforting texture and flavor profile that we all love. The combination of fresh vegetables and succulent chicken, all enveloped in a rich Alfredo sauce, makes this dish a real crowd-pleaser.

• 1 small onion, diced small – Adds sweetness and depth to the flavor.
• 2 tsp. olive oil – For sautéing the onion and garlic.
• 1 T minced garlic – Provides aromatic flavor, enhancing the overall taste.
• one 15 oz. jar Rao’s Alfredo Sauce – The creamy base that brings everything together.
• 1/2 tsp. poultry seasoning – Adds a savory boost.
• 1/2 tsp. ground thyme – A fragrant herb that complements the dish.
• 1 tsp. Spike Seasoning – A unique blend of spices for extra flavor.
• 1/4 tsp. black pepper (or more, to taste) – For a hint of spice.
• 1/2 cup sour cream – Adds creaminess and tanginess.
• 6 cups cooked, diced chicken breast – The protein that makes this dish hearty.
• 6 cups broccoli florets (or a little more) – The star vegetable, providing color and nutrition.
• 1 1/2 cups grated Swiss cheese – Melts beautifully and adds richness.
• 1/2 cup grated Parmesan Cheese – For topping and extra flavor.

How to Prepare Chicken Broccoli Alfredo Casserole

Preparing the Chicken Broccoli Alfredo Casserole is a satisfying experience that fills your kitchen with mouth-watering aromas. Follow these simple steps to create a dish that will impress everyone at your table.

1. Preheat your oven to 375F/190C. This temperature is perfect for baking the casserole until it’s bubbly and golden brown.
2. Next, spray a 9" x 13" casserole dish with olive oil or non-stick spray to prevent sticking. This ensures that your casserole comes out beautifully when it’s time to serve.
3. Dice up a small onion and heat olive oil in a large frying pan, making sure it’s big enough to hold all ingredients. Sauté the onion over medium-high heat until it starts to slightly brown, which will take about 4 to 5 minutes. You want it translucent and aromatic.
4. Add minced garlic to the pan and cook for another 1 to 2 minutes until fragrant. Watch it closely to make sure it doesn’t burn, as burnt garlic can turn bitter.
5. Once the onion and garlic are cooked, add the Alfredo sauce, poultry seasoning, ground thyme, Spike Seasoning, black pepper, and sour cream to the frying pan. Stir well to combine, and let the mixture simmer over low heat, allowing the flavors to meld together for about 5 minutes.
6. While the sauce simmers, cut up your cooked chicken breast. You can use rotisserie chicken for convenience or breast you cooked yourself. Add this chicken to the sauce mixture, stirring gently. Let it simmer for about 5 minutes more to warm the chicken through.
7. Cut the broccoli into bite-sized pieces and place them in a bowl. Microwave the broccoli for 1 to 2 minutes, depending on how tender you like it. Aim for a bright green color while keeping some crunch.
8. Gently stir the cooked broccoli into the chicken and sauce mixture. Use a spatula to fold everything together without mashing the broccoli.
9. Now, add 1 cup of grated Swiss cheese into the mixture, folding it in until it’s melted and evenly distributed.
10. Transfer the chicken-broccoli-sauce mixture to the prepared casserole dish. Ensure an even layer across the dish.
11. Top the casserole with the remaining Swiss cheese and sprinkle the Parmesan cheese over the top. This will create a delicious crust when baked.
12. Bake in the preheated oven for 25 to 30 minutes, or until the casserole is bubbling hot and the top is starting to brown. The aroma will be irresistible!
13. Finally, remove from the oven and let it cool slightly before serving hot. It can be stored in the fridge for several days or even frozen for later enjoyment.

How to Switch It Up

If you’re looking to add your personal touch to the Chicken Broccoli Alfredo Casserole, there are plenty of ways to switch it up and keep it exciting. Here are some great suggestions for variations and twists!

• Storage: To store leftovers, let the casserole cool completely before covering with plastic wrap or transferring to an airtight container. It will keep in the fridge for up to four days.
• Freezing: You can freeze the assembled but unbaked casserole. Just cover it tightly with foil. When ready to bake, thaw in the fridge overnight before cooking.
• Pairing: Serve it with a side salad or garlic bread for a complete meal. The freshness of a salad cuts through the richness of the casserole.
• Vegetable Variations: Add in other vegetables like spinach, bell peppers, or mushrooms to mix in more flavors and nutrients.
• Different Cheeses: Try using different cheese blends like cheddar or Monterey Jack for a unique twist on the flavor.
• Spicy Kick: Add red pepper flakes or diced jalapeños for a bit of heat if you enjoy a spicy kick.

Serving This Chicken Broccoli Alfredo Casserole

Serving the Chicken Broccoli Alfredo Casserole is just as delightful as preparing it. Here’s how to make the most of this scrumptious dish:

• Ideal for Family Dinners: This casserole is perfect for family gatherings or cozy dinners. It’s filling and satisfying, making it a hit among all age groups.
• Lunch Leftovers: Pack leftovers for lunch the next day. It reheats nicely and makes for a comforting midday meal.
• Seasonal Pairings: In the winter months, consider serving it with roasted vegetables or a warm, crusty loaf of bread.
• Special Occasions: Serve this dish during special occasions like holidays or birthdays for a special touch. Everyone will love the creamy, cheesy goodness!
• Garnish: For a lovely presentation, sprinkle fresh parsley or chives on top before serving for a pop of color.
• Cooking for a Crowd: This recipe is fantastic for potlucks or gatherings since it can easily be doubled or halved.

FAQ

Conclusion

The Chicken Broccoli Alfredo Casserole is a comforting dish that combines creamy sauce, tender chicken, and vibrant broccoli in a way that’s simply irresistible. It’s perfect for a family dinner or a cozy gathering with friends. I encourage you to try making it for your next meal; you won’t be disappointed! The combination of flavors and textures will leave everyone at the table satisfied and asking for more.

Chicken Broccoli Alfredo Casserole

The ultimate comfort food, Chicken Broccoli Alfredo Casserole combines creamy Alfredo sauce with tender chicken and fresh broccoli. It's the perfect easy weeknight dinner that will satisfy your cravings and bring joy to your table tonight!

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 30 minutes mins

Total Time 45 minutes mins

Servings: 4 servings

Course: Dinner

Cuisine: American

Calories: 520

Ingredients Equipment Method Notes

Ingredients

  

• 1 small onion diced small
• 2 tsp olive oil
• 1 T minced garlic
• 1 15 oz. Rao's Alfredo Sauce
• 1/2 tsp poultry seasoning
• 1/2 tsp ground thyme
• 1 tsp Spike Seasoning
• 1/4 tsp black pepper (or more, to taste)
• 1/2 cup sour cream
• 6 cups cooked, diced chicken breast
• 6 cups broccoli florets (or a little more)
• 1 1/2 cups grated Swiss cheese
• 1/2 cup grated Parmesan Cheese

Equipment

• Cutting Board
• Skillet
• Saucepan
• Frying pan
• Grater
• Wooden Spoon
• Oven
• Mixing Bowl
• Baking Sheet

Method

 

1. Preheat oven to 375F/190C.
2. Spray a 9" x 13" casserole dish with olive oil or non-stick spray.
3. Dice up a small onion, heat olive oil in a large frying pan (big enough to hold all the ingredients), and cook the onion over medium-high heat until it's starting to slightly brown.
4. Add minced garlic and cook 1-2 minutes more.
5. When onion and garlic are cooked, add Alfredo sauce, poultry seasoning, ground thyme, Spike Seasoning, black pepper, and sour cream to the frying pan. Stir to combine and let the mixture start to simmer over low heat.
6. Cut up rotisserie chicken (or chicken breasts you cooked yourself) and add to sauce mixture. Simmer about 5 minutes.
7. Cut up broccoli into bite-sized pieces, put in bowl (or large 8 quart glass measuring cup) and microwave the broccoli 1-2 minutes, depending on how cooked you like it.
8. Gently stir the cooked broccoli into the chicken and sauce mixture.
9. Add 1 cup of grated Swiss cheese, and gently mix the cheese in.
10. Then transfer the chicken-broccoli-sauce mixture to the casserole dish
11. Top with the rest of the Swiss cheese and the Parmesan cheese.
12. Bake 25-30 minutes, or until the mixture is bubbling hot and starting to brown on top.
13. Serve hot.
14. This will keep in the fridge for several days. It's also not bad when it's been frozen, thawed, and reheated, although the broccoli will get a little softer after it's been frozen.

Notes

• Storage: To store leftovers, let the casserole cool completely before covering with plastic wrap or transferring to an airtight container. It will keep in the fridge for up to four days.
• Freezing: You can freeze the assembled but unbaked casserole. Just cover it tightly with foil. When ready to bake, thaw in the fridge overnight before cooking.
• Pairing: Serve it with a side salad or garlic bread for a complete meal. The freshness of a salad cuts through the richness of the casserole.
• Vegetable Variations: Add in other vegetables like spinach, bell peppers, or mushrooms to mix in more flavors and nutrients.
• Different Cheeses: Try using different cheese blends like cheddar or Monterey Jack for a unique twist on the flavor.
• Spicy Kick: Add red pepper flakes or diced jalapeños for a bit of heat if you enjoy a spicy kick.

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Meet Brooke Davis

I’m all about cozy, comforting food made with fresh, local ingredients. I develop most of our weeknight dinners and heartier main dishes. My specialty is taking a classic comfort food and giving it a bright, California twist. We all cook and test together, but I’m usually the one in charge of the main event and making sure every recipe is perfect.