Last Updated on November 3, 2021 by Kathryn Donangelo
This easy cheesy Brussels Sprouts Casserole makes a delicious side dish for the holidays. Tender pieces of brussels sprouts are coated and baked in a creamy cheese mixture. This will be your new favorite side dish!
If you are looking for a simple, easy and delicious side dish for your next holiday or dinner, this Brussels Sprouts Casserole is perfect and it’s loaded with veggies too! The creamy and cheesy sauce that coats each brussels sprout takes this recipe to another level.
The creamy smooth cheese sauce is made with 3 different cheeses to make this even more rich and delicious. This casserole dish is flavor packed and is a great way to get your kids to eat veggies! You won’t get over how incredible the Brussels Sprouts taste after they have been bathing in a bubbly and creamy cheese sauce in the oven.
Love Brussels Sprouts just as much as I do? Make my Roasted Garlic Parmesan Brussel Spouts too!
This recipe is truly so easy to make and this side dish can be made in less than an hour. If you are one of those people who likes to prep the night before a big holiday, you can make this ahead of time!
MAKE AHEAD OF TIME
We can all use any tips or tricks to make the holidays a breeze especially when it comes to cooking. Make this recipe the night before to save you 40 minutes in the kitchen. Save your stove and oven for something else the day of!
Follow recipe steps 1 through 5. Cover the casserole dish with plastic wrap or foil and place in the refrigerator until ready to bake the next day. Bake accordingly to directions, you may want to add a few minutes to ensure all of the cheese sauce is completely melted.
INGREDIENTS TO MAKE BRUSSELS SPROUTS CASSEROLE
- Brussels Sprouts
- Butter
- Olive oil
- Garlic
- Shallot
- All-purpose flour
- Milk
- Cream Cheese
- Salt + pepper
- Montery Jack cheese or Gruyere
- Mozzarella cheese
- Parmesan cheese
HOW TO MAKE BRUSSELS SPROUTS CASSEROLE
- Preheat oven to 375 degrees F. In a large frying pan over medium heat, combine the butter, oil, garlic, shallot, salt and pepper. Sauté until the shallots are tender, about 2-3 minutes. Add the brussels sprouts and stir to coat in the oil and butter. Cook until sprouts have softened, about 5 minutes.
- Remove the brussels sprouts mixture from the frying pan and set aside.
- In the same frying pan over low heat, melt the butter and once butter has turned frothy, whisk in the flour until it turns into a paste. Slowly pour in the milk and add the cream cheese whisking continuously ensuring no lumps form and the butter and flour are incorporated. Season with salt and pepper.
- Raise the heat to medium and continue to whisk until the mixture is simmering and small bubbles form. Stir in the cheeses until they have melted and the cheese sauce has thickened, about 5 minutes. The cheese sauce will coat the back of a wooden spoon when done.
- Add the cooked brussels sprouts to the cheese mixture and stir until all of the brussels sprouts are drenched in the cheese sauce. Pour into an 8 x 8 inch baking dish and top with more cheese!
- Bake for 15-20 minutes.
Look at all of that creamy goodness from the cheese sauce. The key to getting the brussels sprouts so soft making them pair with the melty cheese sauce so perfectly is sautéing the sprouts before. This side dish is so luscious and mouth-watering, you won’t believe you are eating veggies!
LOOKING FOR OTHER SIDE DISHES? TRY THESE EASY RECIPES!
- Fluffy Bread Rolls
- Creamy Crock Pot Mashed Potatoes
- Roasted Herb Sweet Potatoes
- Broccoli Cheddar Quinoa Casserole
- Garlic Parmesan Smashed Potatoes
- Potato Gratin
- Zucchini, Squash and Corn Bake
- Cheesy Zucchini Bread
- Loaded Cheesy Cauliflower Bake
- Cheddar and Broccoli Twice Baked Potatoes
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Brussels Sprouts Casserole
Ingredients
- 1 1/2 lbs. brussels sprouts; stems and outer leaves removed and halved (cut into quarters if extra large)
- 1 Tbsp. butter; divided
- 1 Tbsp. olive oil
- 1 shallot; minced
- 2 cloves garlic; minced
- 1/2 tsp. salt
- 1/4 tsp. black pepper
Creamy Cheese Sauce Ingredients
- 2 Tbsp. butter
- 2 Tbsp. all-purpose flour
- 1 cup milk; whole or reduced fat
- 1/2 cup cream cheese
- 1 cup Monterey Jack or Gruyere cheese; shredded Plus extra for the topping
- 1 cup mozzarella cheese; shredded Plus extra for the topping
- 1/4 cup parmesan cheese; shredded or grated Plus extra for the topping
- 1/4 tsp. salt
- 1/8 tsp. black pepper
Instructions
- Preheat oven to 375 degrees F. In a large frying pan over medium heat, combine the butter, oil, garlic, shallot, salt and pepper. Sauté until the shallots are tender, about 2-3 minutes. Add the brussels sprouts and stir to coat in the oil and butter. Cook until sprouts have softened, about 5 minutes.
- Remove the brussels sprouts mixture from the frying pan and set aside.
- In the same frying pan over low heat, melt the butter and once butter has turned frothy, whisk in the flour until it turns into a paste. Slowly pour in the milk and add the cream cheese whisking continuously ensuring no lumps form and the butter and flour are incorporated. Season with salt and pepper.
- Raise the heat to medium and continue to whisk until the mixture is simmering and small bubbles form. Stir in the cheeses until they have melted and the cheese sauce has thickened, about 5 minutes. The cheese sauce will coat the back of a wooden spoon when done.
- Add the cooked brussels sprouts to the cheese mixture and stir until all of the brussels sprouts are drenched in the cheese sauce. Pour into an 8 x 8 inch baking dish and top with more cheese!
- Bake for 15-20 minutes until the sides of the casserole turn golden brown and the cheese is bubbly and melty. Enjoy!
Notes
- Store any leftovers in an airtight container for up to 3 days in the refrigerator. To reheat microwave for 1-2 minutes until warmed and cheese is melted or reheat in oven at 350 degrees F.
- Add bacon! If you and your family love bacon, add bacon pieces to the casserole. Simply sprinkle as much bacon as you want when you add the Brussels sprouts to the cheese sauce. Add some bacon pieces to the top too before baking!
Oh my this looks truly scrumptious! I love brussel sprouts and cheese.
Loving your blog! Monterey is where I grew up, love that place so much. Thank you for all the wonderful recipes, have a wonderful Thanksgiving!
Thank you so much, Catherine! That is so cool you grew up in Monterey, I was born and raised here and love it! Happy Thanksgiving to you as well! 🙂
This Brussels Sprouts Casserole is making my tummy growl! I am really hungry right now and it looks really delicious.
Thank you so much!!
You can never go wrong with lots of cheese. This will change the mind of any brussels sprouts haters. It looks yummy!
I agree!! The cheese is makes these sprouts so perfect!
This Brussel Sprout Casserole looks incredibly delicious! Guess what I’m making this week now? Thank you for sharing!
Yay that is great! I hope you loved this recipe!
It is a challenge to make certain members of my family to eat brussel sprouts. Well I can testify that your casserole was the turning point and now they are never going back! The whole family loved your recipe. Per your suggestion I added bacon and it was terrific. Thanks so much for making brussel sprouts popular again in my house!
I’m so glad you were able to try my recipe! The bacon is such a great addition to this recipe. Thank you so much!
I made this easy cheesy Brussels Sprouts Casserole for the holidays and they flew off the table! Excellent flavor and the instructions were spot on! Saving this recipe to make again at Christmas!
That is amazing! Thank you for trying this recipe and so happy it was a hit on your families table!
I made this Brussel Sprout Casserole today and let me tell you , I will never eat Brussel Sprouts any other way. I added the bacon you suggested and it was so a wonderful addition to this creamy cheesy casserole. This is a keeper for sure!
Love this! Thank you so much for trying recipe! I love that you added the bacon 🙂
Super delicious. Everyone cleaned their plates after I made these!!
Love hearing that! Thank you! I’m so glad this side dish was a hit!
Yum, this looks so good I feel like even my family who usually hates brussels sprouts would like this haha. Can’t wait to try this casserole.
Thank you, that is great to hear! I hope you and your family love it!
These are so good! I already love both cheese and brussel sprouts, and for some reason never made them together. This recipe is a winner, and they were at hit for thanksgiving… thank you for the great recipe!
That is great! I’m so glad they were a winner and you made them for Thanksgiving!