Transform the way you think about Brussels sprouts with this indulgent side dish! Shredded Brussels are sautéed with garlic, infused with the smoky richness of bacon, and finished with a golden, melted Parmesan topping. Perfectly savoury and utterly satisfying, this gratin is a crowd-pleaser for any occasion.

Gone are the days of soggy, overboiled Brussels sprouts that scarred childhood dinners. This dish takes those humble veggies to new heights, proving they can be the star of the table. Whether it's a family meal or a festive feast, this gratin will have everyone coming back for seconds!
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Calories in Bacon Brussels Sprout Gratin
This recipe serves 6 and is 120 calories per serving
If you're looking for more recipes within the same calorie range, you'll find an abundance of options in my dedicated collection of 200+ calorie recipes.
If you're following a calorie-controlled diet or a healthy eating plan, it's important to calculate your daily calorie intake using a reliable calorie calculator. Please note that the calorie counts provided are estimates and can vary based on specific ingredients and serving sizes. Personalizing your calculations is essential to meet your individual needs. By using a calorie calculator, you can make informed choices and stay on track with your dietary goals.
See the recipe card for full nutritional estimation.

Ingredients Needed
To make this gratin you will need the following simple ingredients:
- Brussels Sprouts - The star of the dish! Thinly slicing or shredding them helps them cook quickly and absorb all the wonderful flavours. Their earthy, nutty taste pairs perfectly with the smoky bacon and creamy Parmesan.
- Garlic - A fragrant addition that enhances the savoury depth of the dish. Garlic brings out the natural sweetness of the Brussels sprouts while complementing the smoky and cheesy notes.
- Chicken or Vegetable Stock - This adds moisture and richness to the dish, infusing the sprouts with a subtle savoury flavour. Using stock instead of water elevates the gratin and makes it more flavourful. It's essential to use the correct ratio of stock cubes to water, as not all stock cubes are identical. Using too few can lead to a bland, watery broth, while too many may create a stock that's overly salty.
- Parmesan - The cheesy topping that brings everything together! Parmesan adds a savoury, umami punch and creates that irresistible golden crust on top.
- Bacon - Smoky, salty, and full of flavour, bacon is the perfect companion to Brussels sprouts. It balances the bitterness of the sprouts and adds a touch of indulgence to the dish.
- Olive Oil Spray - A light, efficient way to coat the pan and ensure nothing sticks, keeping the dish lean while still allowing the ingredients to cook beautifully. I prefer to use a spray oil without emulsifiers.
- Salt and Black Pepper - Essential for enhancing flavours, these seasonings bring out the best in every ingredient. Black pepper adds a hint of warmth, while salt enhances the natural flavours of the sprouts and bacon.
Once you've gathered all the ingredients and prepared them accordingly, you're all set to create this easy and delightful recipe.
See the recipe card for specific quantities and instructions.
The Perfect Thanksgiving or Christmas Side Dish
This Brussels Sprouts Gratin is a game-changer for the holiday table, offering a decadent twist on the usual sautéed sprouts. With the smoky richness of bacon and a golden, cheesy Parmesan topping, it's a side dish designed to shine at Thanksgiving or Christmas. Even the kids will be tempted to dig in, making it a guaranteed crowd-pleaser that won't leave anyone dreading Brussels sprouts ever again.
For Christmas, the smoky bacon brings a festive warmth that pairs beautifully with roasted turkey or ham. On Thanksgiving, it's the perfect indulgent addition alongside traditional favourites like stuffing and cranberry sauce. This dish is so good, you might just find yourself making it year-round-and maybe even sneaking a second helping before the main course!
Other Great Recipes to Pair with This Gratin
Looking for the perfect dishes to complete your holiday spread? This Brussels Sprouts Gratin is versatile enough to complement a range of mains and sides. Whether you're planning a traditional feast or something a little different, it pairs beautifully with hearty, flavourful dishes that bring everyone to the table. Keep scrolling for some of my favourite recipes to serve alongside this indulgent gratin!
For my ideal meal to accompany this Bacon Brussels Sprouts Gratin, I love to pile my plate high with a delicious selection of favourites:
- Slow Cooked Chicken
- Roast Potatoes
- Yorkshire Puddings
- Onion Gravy
- Roasted Garlic French Green Beans
- Sausage, Sage, Onion Quinoa Stuffing
- Lighter Mashed Potatoes
- Roasted Paprika Butternut Squash
Each element perfectly complements the creamy, smoky goodness of the gratin, creating a truly satisfying and indulgent feast!
or if you would like more recipe ideas - head on over to the FULL RECIPE INDEX where you will find over 900 delicious recipes with calories and you can search by meal type, ingredients, course, diet and more.
All recipes on Slimming Eats have estimated nutritional information for your convenience.

FAQ for Bacon Brussels Sprouts Gratin
Yes, you can prepare the gratin ahead of time. Simply assemble the gratin up to adding to the dish, cover it with foil, and store it in the fridge. When ready to serve, bake it in a preheated oven until hot and the cheese is melted and golden. It's a great option for reducing stress on the day of your meal.
Yes, you can easily make this dish vegetarian by replacing the bacon with sautéed mushrooms or a vegetarian bacon alternative for that savoury, umami flavour. Be sure to use an Italian-style hard vegetarian cheese and swap the chicken stock for vegetable stock to keep it fully plant-based.
Yes, I recommend freezing this gratin before baking for up to 2 months. To reheat, bake directly from frozen or defrost in the fridge overnight before baking as usual
Leftovers can be stored in an airtight container in the fridge for up to 3 days. Reheat in the oven to maintain that lovely texture, or in the microwave for a quicker option.

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Charlotte says
Hi, love your recipe ideas but this is listed under your vegetarian section!
Siobhan (Slimming Eats) says
yep, that is right 😉 - see note in recipe box to use a vegetarian-friendly Italian hard cheese.