Our keto Brussel sprouts casserole, topped with a creamy cheese sauce and bacon, is just so tasty you'll want to eat it right out of the pan! Although this technically is a side dish recipe, you could definitely consider it a main dish recipe, too. With our low carb Brussel sprouts recipe, you are going to see just how WHOLE LOTTA YUM this healthy little sprout can be.
Low Carb Brussel Sprouts Casserole with Bacon
When I was a kid my thoughts about Brussels sprouts conjured up all sorts of disgusting and bitter memories of the boiled Brussel sprouts. I couldn't ever understand why my mom even cooked them.
The days of yucky, boiled, and bitter Brussel sprouts of the past are long gone! Thanks to farmers making them less bitter, and learning how to properly roast and carmelize this savory vegetable, we have taken this little green sprout from the bottom of the barrel to a family favorite vegetable!
While this keto Brussel sprouts casserole can be served as a complete meal since it includes protein, dairy, and vegetables, you may also want to try pairing it with a simple side salad or some additional fatty-protein options including bratwurst or ham.
No matter how you serve them, Brussel sprouts are always a great choice! If you're looking for more low carb Brussel sprouts recipe, be sure to try our oven roasted Brussel sprouts and our maple roasted butternut squash and Brussel sprouts.
Why You'll Love This
- No bitter Brussels here! We are going to start by baking all the bitterness out and caramelizing the natural sugars so your keto Brussel sprout casserole is sweet, savory, and delicious!
- To enhance the natural savoriness of your caramelized Brussel sprouts, we are going to add in crumbled bacon, cheese, and cream to create the best low-carb Brussel sprout casserole you have ever tasted!
- Our keto Brussel sprouts casserole is perfect for those readers who are looking to add in new and exciting dishes to their gluten-free, low-carb, or keto lifestyles.
- Brussel sprouts are a super healthy vegetable, chock full of Vitamin C, fiber, minerals, and antioxidants.
On Keto? Grab our FREE keto foods list here OR Snag our Keto Binder HERE
Clean Brussel sprouts, fresh bacon, your favorite block of white cheese, and some heavy cream are about to combine to show you just how flavorful and wonderful a keto Brussel sprout casserole can be.
- Brussel sprouts
- heavy whipping cream
- white cheese - shredded (we used a swiss/gruyere blend)
- black pepper
- sea salt
- bacon slices - easily cook your bacon in the oven or try air fryer bacon
Mixing in other hearty vegetables like cauliflower or broccoli works great too!
While we know that our keto Brussel sprouts casserole is low-carb and keto-friendly, we do want to caution you against using pre-shredded cheese. Pre shredded cheese often has a coating of potato starch (to prevent sticking) that adds unwanted carbs to your dish. Whenever possible we always recommend using block cheese and shredding it yourself. Not only do you limit the hidden carbs, but you do also get a better-tasting cheese.
Step By Step Instructions
To key to making the perfect keto Brussel sprouts casserole is taking your time and being patient. Allow the sprouts to bake and caramelize before you add the cream and cheese that will finish off your dish.
Your patience will be rewarded!
Preheat your oven to 400F. Make sure your oven rack is in the middle position.
Grease a 2-quart baking dish with oil or cooking spray. Either a 9x9 baking dish or a small casserole dish will work.
Cut the Brussel sprouts in half and lay them cut side down in the prepared baking dish.
Bake your Brussel sprouts in the oven for 30 minutes. (***Note: This will not fully cook your Brussel sprouts.)
While the Brussel sprouts are baking, cook your bacon on the stovetop (alternatively, you can use pre-cooked bacon and skip this step). Crumble the bacon.
After your Brussel sprouts have cooked for 20-minutes, begin preparing the cheese sauce.
In a grease skilled, over medium-low heat, combine the heavy whipping cream, shredded cheese, salt, and pepper. Heat the sauce until the cheese is melted.
After the Brussel sprouts have baked for 30-minutes, remove them from the oven.
Sprinkle the cooked bacon on top of the Brussel sprouts and top with the cheese sauce. Feel free to add a small sprinkle of additional cheese directly to the top.
Place the casserole back into the oven and bake for an additional 10-15 minutes, until the entire dish is bubbly and the cheese is lightly browned.
To check for doneness, pierce a Brussel sprout with a fork to make sure it's tender.
Serve the Brussel sprouts keto recipe warm and enjoy!
- If you have more Brussel sprouts than can fit in a single layer it is OK to double them up. Just make sure all of your sprouts are cut side down.
- Placing the Brussel sprouts cut side down will allow the insides to receive direct heat and cook more evenly.
- Start the cheese sauce in the last 10-minutes that the Brussel sprouts are baking to prevent the sauce from cooling too much and hardening.
- Be sure to cook your Brussel sprouts for a full 30-minutes prior to adding the bacon and cheese sauce. This will help the sprouts to carmelize and soften and give you a keto Brussel sprouts casserole that is sweet and savory.
- While we prefer a mix of swiss and gruyere, you can use any white cheese that your family loves.
While you can easily serve this casserole as a meal all by itself, we also enjoy serving it with air fryer brats, air fryer ham, or a side salad.
You can dish up leftovers for up to 4 days when you store your leftovers in an airtight container in the fridge.
As the casserole contains a lot of dairy, we do not recommend freezing it. Defrosted dairy tends to end up grainy.
With only 5 net carbs per serving, Brussel sprouts are definitely a healthy vegetable you can eat when you're watching your carbs or following a low-carb or keto lifestyle.
More Brussel Sprout Recipes
Looking for more delicious ways to serve Brussel sprouts?
- Maple Roasted Butternut Squash and Brussel Sprouts
- Frozen Brussel Sprouts Air Fryer Recipe
- The Best Oven Roasted Brussel Sprouts Recipe
- Air Fryer Brussel Sprouts with Balsamic Glaze
- How Many Carbs in Brussels Sprouts + 10 recipes
Come connect with us on Instagram! Be sure to tag us (wholelotta.yum) when you make a recipe. You can also find us on Facebook, and Pinterest.
Sandy Barker says
I am going to try this for Thanksgiving but would like to make it ahead of time. Do you think it can be frozen?
Hi Sandy! I wouldn't freeze it since cream or milk sometimes gets grainy when frozen. I think it would be totally fine to make 2-3 days ahead of time! Enjoy and happy Thanksgiving!
We Love it. Even cut up some already cooked ham. My husband absolutely Loves it. I used frozen Brussels.
Edina Botta says
Have you tried using frozen brussel sprouts? I have a bag in the freezer ?
Hi Edina, I have not yet tried frozen Brussel sprouts but they would still work for sure! Since you're roasting the brussels anyways, you can just as easily roast them from frozen and add extra time to the baking time. That being said, frozen brussel sprouts are often smaller than the fresh ones in the store, so keep an eye on them by chance they don't end up taking longer! Enjoy! Jen
Sana Uter says
Can you please tell me what a serving size would be for this recipe?
Hi Sana, there are 8 servings in the whole casserole. My best guess is that each serving is around 1/2 cup per person.
Sharon O’Fallon says
The is a go to recipe for me whenever I need to take a dish to a family gathering. Even the Brussels sprouts “haters” eat them! I make them year round!
Love this! Thank you so much, Sharon! As a former Brussels sprouts hater myself, it is ALL how they get cooked! Roasted Brussels sprouts casserole is definitely one of our family holiday favorites too.
Can heavy whipping cream be substituted for the half & half?
For sure! We go between heavy cream or half & half, depending on what's in the fridge 🙂 Enjoy!
What’s the amount of cream we have to add?
The recipe says to add 1 cup of half n half. Enjoy!
The ingredients list show one cup of heavy whipping cream not half and half.