I remember the first time I convinced my family that Brussels sprouts could be the star of our Christmas feast. This Brussels Sprouts Casserole is creamy, cheesy, and topped with a golden crunch that makes everyone reach for seconds. It has become a cherished holiday tradition in my home, turning even the most skeptical guests into sprout lovers with its rich textures and savory flavors.

Recipe Details

Recipe Information

Prep Time: 15 minutes
Cook Time: 35 minutes
Total Time: 50 minutes
Servings: 8
Difficulty: Easy

Nutrition Information (Per Serving)

Calories: 245
Protein: 12g
Carbs: 14g
Fat: 18g

Why You’ll Love This Brussels Sprouts Casserole

This dish is the ultimate holiday comfort food. It transforms the humble sprout into a decadent side that balances the earthy tones of the vegetables with a velvety cheese sauce. It is specifically designed to be prepped ahead of time, which is a lifesaver when you are managing a busy Christmas kitchen. The combination of smoky turkey bacon and sharp cheese creates a flavor profile that complements roasted turkey or beef perfectly.

Brussels Sprouts Casserole Ingredients & Substitutions

2 lbs Brussels sprouts, trimmed and halved
4 strips turkey bacon, diced
1 medium yellow onion, finely chopped
3 cloves garlic, minced
1 cup heavy cream
1 cup shredded Gruyere cheese
1/2 cup grated Parmesan cheese
1/2 cup Panko breadcrumbs
2 tablespoons butter, melted
1/2 teaspoon smoked paprika
Salt and black pepper to taste

If you cannot find Gruyere, a sharp Swiss or white cheddar works beautifully as a replacement. For a lighter version, you can swap heavy cream for half and half, though the sauce will be slightly thinner. To make this dish vegetarian, simply omit the turkey bacon and add a bit more smoked paprika to maintain that signature smoky depth.

Step-by-Step Instructions to Make Brussels Sprouts Casserole

Step 1: Blanch the Sprouts

Bring a large pot of salted water to a boil. Add the halved Brussels sprouts and cook for about 3 to 4 minutes until they are bright green and slightly tender. Drain them immediately and plunge them into a bowl of ice water to stop the cooking process. This keeps them vibrant for your Christmas table.

Step 2: Sauté the Aromatics

In a large oven safe skillet over medium heat, cook the turkey bacon until it becomes crisp and golden. Remove the turkey bacon and set it aside, but keep the drippings in the pan. Add the chopped onion to the pan and sauté until translucent, then stir in the garlic and cook for another minute until fragrant.

Step 3: Create the Creamy Base

Reduce the heat to low and pour in the heavy cream. Stir in the smoked paprika, salt, and pepper. Add the blanched Brussels sprouts and the cooked turkey bacon back into the skillet, tossing gently to coat everything in the cream. Stir in half of the Gruyere and half of the Parmesan until the cheese begins to melt and thicken the sauce.

Step 4: Add the Topping and Bake

In a small bowl, mix the Panko breadcrumbs with the melted butter and the remaining Parmesan cheese. Sprinkle the remaining Gruyere over the top of the sprouts, then finish with an even layer of the buttery breadcrumbs. Transfer the skillet to a preheated oven at 375 degrees Fahrenheit and bake for 15 to 20 minutes until the top is golden brown and bubbling.

Tips for Success

To ensure the best results, always pat your Brussels sprouts dry after the ice bath so the cream sauce adheres better. Using freshly grated cheese rather than pre shredded bags will result in a much smoother melt without any grainy texture. If you are serving this for a large Christmas party, you can double the recipe and bake it in a large ceramic casserole dish instead of a skillet.

Variations of Brussels Sprouts Casserole

You can easily customize this dish to fit your palate. Add a handful of toasted pecans or walnuts to the breadcrumb topping for an extra festive crunch. For a touch of sweetness that pairs well with Christmas dinner, stir in 1/4 cup of dried cranberries before baking. If you prefer a bit of heat, a pinch of red pepper flakes stirred into the cream sauce adds a lovely subtle kick.

Serving Suggestions: What to Pair with Brussels Sprouts Casserole

This casserole is a natural partner for a traditional holiday roast. It pairs exceptionally well with herb crusted chicken, roasted turkey breast, or a slow cooked beef pot roast. Since it is quite rich, serving it alongside a bright, acidic salad with a lemon vinaigrette helps balance the meal. Crusty sourdough bread is also great for mopping up any extra cheese sauce left on the plate.

Storage & Reheating Instructions

Store any leftovers in an airtight container in the refrigerator for up to three days. To reheat, place the casserole in an oven at 350 degrees Fahrenheit for about 10 minutes to help the topping regain its crispness. While you can use a microwave for a quick warm up, the oven is definitely preferred to keep the texture from becoming soggy.

Memories Made Around the Table

Christmas in my house always involved a bit of a struggle to get the kids to eat their greens. I remember the year I first brought this casserole out, the smell of bubbling cheese and smoky turkey bacon filled the air and suddenly everyone was curious. My youngest actually asked for a third helping, and now it is the one dish my family requests every single December without fail.

FAQs

Can I make this casserole ahead of time?

Yes, you can prepare the sprouts and the sauce up to 24 hours in advance. Keep the breadcrumb topping separate and store the assembled casserole in the fridge. When you are ready to serve, add the topping and bake as directed, though you may need to add five extra minutes to the bake time if it is cold from the refrigerator.

Can I use frozen Brussels sprouts?

While fresh sprouts provide the best texture, you can use frozen ones in a pinch. Make sure to thaw them completely and squeeze out as much excess moisture as possible before adding them to the sauce to prevent the casserole from becoming watery.

How do I prevent the sprouts from becoming mushy?

The key is the quick blanching step. Only boil them until they are crisp tender and immediately cool them in ice water. This ensures they maintain some bite even after they have been baked in the oven with the cream sauce.

What can I use instead of turkey bacon?

If you prefer not to use turkey bacon, you can use smoked salt or a little extra smoked paprika to achieve that savory, smoky flavor. Some people also enjoy using sun dried tomatoes for a different kind of savory depth.

Is this dish suitable for a buffet style dinner?

Absolutely. It holds its heat well and the sturdy nature of the sprouts means they won’t fall apart as the dish sits on a warming tray. It is a very popular choice for holiday potlucks because it travels well and appeals to a wide variety of tastes.

Final Thoughts

This Brussels Sprouts Casserole is more than just a side dish, it is a way to bring warmth and indulgence to your Christmas celebration. With its golden crust and creamy interior, it turns a simple vegetable into something truly special. I hope it brings as much joy to your holiday table as it has to mine over the years. Happy cooking and merry festivities to you and your loved ones.

Brussels Sprouts Casserole

Print Recipe

Total Time: 50 minutes

Ingredients

2 lbs Brussels sprouts, trimmed and halved
4 strips turkey bacon, diced
1 medium yellow onion, finely chopped
3 cloves garlic, minced
1 cup heavy cream
1 cup shredded Gruyere cheese
1/2 cup grated Parmesan cheese
1/2 cup Panko breadcrumbs
2 tablespoons butter, melted
1/2 teaspoon smoked paprika
Salt and black pepper to taste

Instructions

Bring a large pot of salted water to a boil. Add the halved Brussels sprouts and cook for about 3 to 4 minutes until they are bright green and slightly tender. Drain them immediately and plunge them into a bowl of ice water to stop the cooking process. This keeps them vibrant for your Christmas table.
In a large oven safe skillet over medium heat, cook the turkey bacon until it becomes crisp and golden. Remove the turkey bacon and set it aside, but keep the drippings in the pan. Add the chopped onion to the pan and sauté until translucent, then stir in the garlic and cook for another minute until fragrant.
Reduce the heat to low and pour in the heavy cream. Stir in the smoked paprika, salt, and pepper. Add the blanched Brussels sprouts and the cooked turkey bacon back into the skillet, tossing gently to coat everything in the cream. Stir in half of the Gruyere and half of the Parmesan until the cheese begins to melt and thicken the sauce.
In a small bowl, mix the Panko breadcrumbs with the melted butter and the remaining Parmesan cheese. Sprinkle the remaining Gruyere over the top of the sprouts, then finish with an even layer of the buttery breadcrumbs. Transfer the skillet to a preheated oven at 375 degrees Fahrenheit and bake for 15 to 20 minutes until the top is golden brown and bubbling.

Cook Time: 50 minutes
Diet: Vegetarian