This creamy chicken and brussel sprout casserole is a nutrient-rich lunch or dinner recipe that everyone will absolutely love! It's super easy to make for any home cook and has layers of flavor similar to alfredo sauce.
🌟 Why this recipe works
Brussels sprouts casserole is a great way to use up leftover brussels sprouts. The casserole is easy to make, and it is a delicious and hearty dish that will please everyone at the dinner table.
One of the reasons that this recipe works so well is because the brussels sprouts are paired with chicken and cream sauce. The chicken helps to add flavor and protein to the dish, while the cream sauce adds richness and creaminess.
The casserole also has parmesan cheese, which makes it extra delicious. If you are looking for a tasty and easy way to use up your leftover Brussel sprouts, then be sure to try this casserole.
Unlike many methods of cooking brussel sprouts that come mushy, this roasted brussels sprouts recipe keeps them firm and tender in this creamy garlic and cheese sauce.
Even the kids will enjoy eating this delicious casserole - and it's super easy to prepare too in 40 minutes using minimal ingredients and basic kitchen equipment. This recipe is very similar to my chicken bacon ranch casserole. Yum!
🍽 Key Ingredients
The recipe is quick to prepare if you have leftover chicken on hand, and fresh Brussel sprouts make all the difference to the overall texture and flavor.
Chicken - Use pre-cooked chicken to save yourself time. Rotisserie chicken or leftover chicken breasts are perfect for this casserole.
Cheese - The only cheese you need for the cream sauce is parmesan cheese
Brussels Sprouts - Use fresh brussels sprouts for this recipe. If you use frozen sprouts, they will become too soft after cooking, and we want delicious crisp and tender brussels sprouts.
Cream sauce - The creamy sauce is a mixture of lots of garlic, butter, and heavy cream with the parmesan cheese mixed through at the end.
You could swap the heavy cream for sour cream. Although, the consistency will be slightly thicker.
If you want a stronger flavored cheese for the cream sauce, you could substitute the parmesan for gruyere cheese or cheddar cheese.
🔪 How to make
This Brussel sprout casserole is perfect for a quick midweek dinner that's full of flavor - and takes just 40 minutes to make using my easy-to-follow instructions.
Cut the fresh Brussels sprouts in half.
Shred the cooked chicken.
Finely dice the garlic cloves.
Preheat your oven.
Grease a casserole dish with butter or coconut oil spray and pour the sprouts into it.
Add the chicken and toss lightly to combine.
Spread the chicken and sprouts mixture out evenly in the dish. Set aside.
Melt butter in small saucepan, add minced garlic and saute until fragrant.
Stir in the heavy whipping cream and simmer until thickened.
Stir in salt and pepper to taste.
Remove the sauce from heat, and stir in Parmesan cheese.
Pour the Alfredo mixture over the chicken and sprouts and stir to combine.
Bake uncovered until browned and bubbly.
Serve immediately garnished with fresh parsley.
💭 Cooking tips
Brussels sprouts size
If you're using small brussels sprouts, It's better to leave them whole so that they don't become too soft. The large sprouts should be halved to cook perfectly.
If your sauce is too thick, you can make it thinner by adding a small amount of vegetable or chicken broth.
If you're not a fan of garlic, You can reduce the amount or use a teaspoon of garlic powder instead.
Casserole recipes are perfect for adding various ingredients to enhance them, and this Brussel sprout casserole recipe is a base for additional flavors.
Brussels sprouts casserole with bacon
If you want to add even more flavor to the casserole, try adding 1 cup of cooked bacon to the mix for a tastier and heartier meal.
Brussels sprouts casserole with breadcrumb topping
If you want a bit of a crunch on top, mix ½ cup of fresh bread crumbs with half a cup of parmesan cheese and sprinkle over the casserole before baking. It will give a nice texture to the dish.
Brussels sprouts with cream cheese casserole
Make the casserole even creamier with a delicious cream cheese mixture, and swap out the heavy cream for 1 package of softened cream cheese. It will give it a richer flavor.
🥗 What to serve
Serve this delicious Brussels sprouts casserole with a side of mashed potatoes, rice, or pasta. It also goes great with a simple salad for a complete meal.
Try these easy and delicious garlic creamy mashed potatoes to serve with your casserole. The smooth texture and the creamy flavor are a perfect match for Brussels sprouts.
If you're looking for a low-carb option, cauliflower rice is a great choice. It has a mild flavor and takes just minutes to cook.
Another classic pairing for Brussels sprouts casserole is penne pasta. Try this simple recipe with a garlic butter sauce and a sprinkle of parmesan. The chewy pasta with creamy sauce and crispy Brussels sprouts is a perfect match.
🙋 Frequently asked questions
Can I make Brussel sprout casserole ahead of time?
Yes, this casserole can be prepared ahead of time and stored in the fridge for up to 2 days. Just cover the dish with aluminum foil instead of baking it - and when you want to cook it, make sure to remove the aluminum foil before baking it.
Is Brussel sprout casserole vegan?
This recipe as written is not vegan. However, vegan variations can be made by substituting the butter with margarine, the cream for coconut cream, and the cheese with a vegan cheese alternative.
🧊 Storage and ♨️ Reheating
Brussels sprouts are stored perfectly in the fridge and freezer, and this creamy casserole tastes even better the next day reheated!
Fridge - Transfer the Brussels sprouts casserole leftovers to an airtight container and store them in the fridge for up to 2 days.
Freezer - If you'd like to store leftovers for longer, freeze them in an airtight container for up to 3 months. Be sure to thaw overnight in the fridge before baking.
Oven - Preheat the oven to 375 degrees Fahrenheit and place the leftovers in a baking dish and bake for 25-30 minutes or until heated through.
Microwave - Place the casserole leftovers in a microwave-safe dish and heat for 3-5 minutes until piping hot.
👪 Serving size
This delicious Brussel sprout casserole recipe will serve 6 people as a main dish or 8-10 people as a side dish.
As the holidays quickly approach, many people are looking for recipes to make for get-togethers with family and friends. This chicken and Brussel sprout casserole are perfect for any occasion! It's easy to follow, quick to make, and most importantly, it's delicious. Also, try my qdoba chicken recipe for busy weekdays!
Chicken Brussels Sprouts Casserole
- 12 ounces Brussels sprouts - shredded or shaved
- 12 ounces Cooked chicken breast cut into bite sized pieces
- 2 tablespoons Unsalted butter
- 3 teaspoons Minced garlic
- 1-½ cup Heavy whipping cream
- ½ cup Grated Parmesan cheese
- Salt and pepper to taste
- Fresh chopped parsley - for garnish
- Preheat the oven to 350 degrees.
- Pour the Brussels sprouts and the chicken into a greased casserole dish and toss to combine.
- In a saucepan melt butter over medium heat.
- Add the minced garlic to the butter, and saute until fragrant, around 30 seconds.
- Stir in the heavy whipping cream and bring it to a low boil. Simmer for several minutes until it has thickened and reduced slightly.
- Add in salt and pepper to taste and stir until combined.
- Remove the thickened cream mixture from the heat, and stir in Parmesan cheese.
- Pour the sauce mixture over the chicken and sprouts in the casserole dish, and combine well.
- Bake uncovered for 25 minutes until the top is browned and bubbly.
- Serve topped with freshly chopped parsley for garnish if desired.