The best new side dish for the holidays is this Smashed Brussel Sprouts recipe! Boiled Brussels sprouts are pushed down, seasoned with garlic butter and Parmesan cheese, then roasted in the oven until they are perfectly crispy. These low-carb veggies make a great addition to the table at Thanksgiving, Christmas, or anytime! 

The best vegan crispy smashed Brussels sprouts with Parmesan cheese, garlic, and herbs in a grey bowl.

Best Smashed Brussels Sprouts Recipe

A few years ago Brussels sprouts made an epic comeback.

What was once known as a mushy and bland canned vegetable soon became America’s favorite side dish.

From Brussels Sprouts with Bacon and Air Fryer Brussels Sprouts to this Shredded Brussels Salad, I jumped on the Brussels bandwagon as quickly as I could.

I thought I had made them in every way known to man.

But I realized there was ONE technique I had not tried…

Smashed Brussels Sprouts.

You’ll first boil the sprouts to soften them up slightly which then allows you to smash them with a glass. 

But why go through all of this effort? I’m so glad you asked!

By flattening the sprouts you’ll get even more surface area to coat with the delicious garlic and herb sauce that will then get exposed to the high heat of the oven. This results in the crispy texture and tastiest Brussels sprouts you’ve ever had! This might be your new favorite way to prepare this veggie.

And if you like this recipe, you can use the same technique with these Crispy Smashed Potatoes!

A one pound bag of Brussels sprouts, Parmesan cheese, butter, garlic, and herbs as the ingredients in a roasted Brussels sprouts recipe.

Ingredients

The simple ingredients you need to make this smashed Brussels sprouts recipe include:

  • Brussels Sprouts. Obviously! The mesh bags full of fresh Brussels sprouts are the easiest to find. You can also use the trimmed Brussels sprouts found in the refrigerated area of your produce section.
  • Butter. If you are vegan or dairy-free you can swap the butter out for extra-virgin olive oil or vegan buttery sticks instead.
  • Fresh Thyme. Fresh rosemary or dried herbs are other options with only a slight effect on taste.
  • Garlic. Crushing the fresh garlic cloves is a crucial step to ensure the sprouts get an equal amount of the garlicky goodness! You can also substitute with garlic powder if that is what you have on hand.
  • Parmesan Cheese. Make sure you get grated Parmesan cheese and not shredded for the best results. If you are dairy-free or vegan you can also select a vegan Parmesan cheese.
  • Salt & Black Pepper. Please feel free to adjust these to your preference.

How to Make Smashed Brussels Sprouts

See the recipe card below for ingredient amounts and complete instructions.

Prepare the Brussels

Use a knife to trim the ends off of the fresh sprouts and remove the outer leaves.

A wooden cutting board with Brussels sprouts that are getting the ends trimmed off with a knife.

Boil and Blanch

Preheat the oven to 425°F.

Bring a large pot of water to a boil, then add the Brussels sprouts. Boil for about 10 minutes or until tender. 

Immerse the cooked Brussels in an ice water bath to stop the cooking process. If you skip this step, they’ll keep cooking, and you’ll end up with a mushy texture at the end. (This whole process is also known as blanching.)

Pat dry thoroughly with a clean kitchen towel or paper towels.

Smash the Sprouts

Line a sheet pan with parchment paper and place the Brussels sprouts on the sheet cut side-up in a single layer.

Push down each Brussels sprout with the bottom of a glass until it is flattened to about ½-inch tall.

The bottom of a glass is used to smash the boiled Brussels sprouts.

Add the Flavor

Whisk together the butter, garlic, thyme, salt, and pepper in a small mixing bowl.

Pour equal amounts of the butter sauce over each sprout. 

Sprinkle all of them with Parmesan cheese.

Bake in Oven

Cook the smashed and seasoned sprouts in the preheated oven for 20-22 minutes.

You will know they are done when you see crispy edges, and when checked with a fork or knife the middle is tender.

Sprinkle the roasted Brussels sprouts with remaining cheese and additional fresh thyme, if desired.

Enjoy!

Crispy smashed Brussels sprouts with garlic and Parmesan cheese on a large baking sheet that have roasted in the oven.

Meal Prep and Storage

  • To Prep-Ahead: Trim, boil, dry, and smash the sprouts, then refrigerate up to 24 hours in advance. On the day of serving let them come to room temperature, top with the sauce and cheese, and bake.
  • To Store: Keep leftover smashed sprouts in an airtight container in the refrigerator for up to 3 days. 
  • To Freeze: Seal in a freezer-safe airtight container for up to 12 months. 
  • To Reheat: Bake in a 350°F oven until warm or reheat in a skillet over medium-low heat.

Dietary Modifications 

The recipe you’ll find below is already vegetarian and gluten-free as written. Here are some adjustments and substitutions you can make to help it fit your other dietary requirements:

  • Dairy-Free: Use olive oil or a dairy-free butter alternative instead of regular butter and make sure the Parmesan is dairy-free.
  • Vegan: Swap out the butter for a plant-based one and use a vegan Parmesan cheese.  
  • Whole30: Omit the butter and instead choose olive oil. Also, top with a plant-based Parmesan cheese.
  • Paleo: Substitute olive oil or ghee for the butter and use a vegan cheese.
Roasted Brussels sprouts that are topped with Parmesan cheese and served as a healthy Thanksgiving, Christmas, or Easter side dish recipe.

Do you cut the ends off of Brussels sprouts before you cook them?

It’s important to cut the ends off of Brussels sprouts before you cook them to remove the fibrous part that isn’t very palatable. You only need to slice up to where the leaves start.

How do you cut the bitterness out of Brussels sprouts?

The best way to remove some of the bitterness of Brussels sprouts is to buy the freshest vegetables possible and to remove the outer layer of leaves before cooking. The cooking method also affects the flavor of this healthy side dish. Using the oven or a hot pan to caramelize the edges brings out this veggie’s natural sweetness.

Are Brussels sprouts good or bad for you?

Brussels sprouts are very good for you! They contain antioxidants and vitamin C, and they can help prevent cancer, heart disease, and diabetes.

The best roasted Brussels sprouts recipe with Parmesan cheese, garlic, and herbs in a grey bowl.

Expert Tips and Tricks

  • Skip the shredded. Grated Parmesan is ideal for the best results.
  • Mix it up. Try other fresh herbs like rosemary or sage for variations each time you make it. Or add some spice with red pepper flakes.
  • Ice ’em. After boiling, chill the cooked Brussels in an ice bath so they do not become overcooked.
  • Work ahead. Prepare the recipe through the smashing step, then on the day of serving top with the sauce, Parmesan, and bake away.
  • Get the most flavor. Use fresh herbs and garlic cloves for the absolute best results. 

More Brussels Sprouts Recipes

If you can’t get enough of these cruciferous veggies, you must try them in these other tasty dishes.

Crispy Brussels Sprouts with Bacon and Maple Balsamic Brussels Sprouts are so full of flavor.

Don’t miss these Shaved Brussels Sprouts Salad or Sautéed Shredded Brussels Sprouts.

Air Fryer Brussels Sprouts might become your new favorite side dish.

Tap stars to rate!

4.75 from 8 votes

Smashed Brussels Sprouts with Parmesan Cheese

The best new low-carb side dish for the holidays is this Smashed Brussel Sprouts recipe. These keto veggies make a great addition to the table at Thanksgiving, Christmas, or anytime!
The best vegan crispy smashed Brussels sprouts with Parmesan cheese, garlic, and herbs in a grey bowl.
Yield 6 servings
Prep 10 minutes
Cook 35 minutes
Total 45 minutes

Ingredients 

  • 2 lbs. Brussels sprouts ends trimmed
  • 4 Tbsp. butter melted
  • 4 cloves garlic crushed
  • 1 tsp. thyme fresh, finely chopped
  • 1 ¼ tsp. salt to taste
  • ¼ tsp. black pepper to taste
  • ½ cup Parmesan cheese grated, divided

Instructions 

  • Preheat oven to 425°F.
  • Boil and Blanch the Brussels Sprouts: Bring a large pot of water to a boil. Add trimmed Brussels sprouts to the pot of boiling water and boil for 10 minutes. Once cooked, drain the sprouts and immerse them in an ice bath to stop the cooking process. Let them sit in the ice bath until they are cool to the touch. Remove the sprouts from the ice bath and dry them thoroughly.
    2 lbs. Brussels sprouts
  • Smash the Sprouts: Line a large baking sheet with parchment paper and place Brussels sprouts, cut side-up, at least 1-inch apart. Using a flat-bottomed glass, push down each Brussels sprout until it is flattened to ~½ inch tall.
  • Coat with Butter and Parmesan: In a small bowl whisk together the butter, garlic, thyme, salt, and pepper. Pour equal amounts of the butter sauce over each sprout and sprinkle all of the Brussels sprouts with ¼ cup of Parmesan cheese.
    4 Tbsp. butter, 4 cloves garlic, 1 tsp. thyme, 1 ¼ tsp. salt, ¼ tsp. black pepper, ½ cup Parmesan cheese
  • Bake in Oven: Bake sprouts in preheated oven for 20-22 minutes or until Brussels sprouts are crispy and cheese is lightly browned.
  • Add more Cheese and Herbs: Just before serving, sprinkle Brussels sprouts with remaining Parmesan cheese and additional fresh thyme, if desired. Enjoy!

Tap stars to rate!

4.75 from 8 votes

Video

Notes

Meal Prep and Storage

  • To Prep-Ahead: Trim, boil, dry, and smash the sprouts then refrigerate up to 24 hours in advance. On the day of serving let them come to room temperature, top with the sauce and cheese, and bake.
  • To Store: Keep leftover smashed sprouts in an airtight container in the refrigerator for up to 3 days. 
  • To Freeze: Seal in a freezer-safe airtight container for up to 12 months. 
  • To Reheat: Bake in a 350°F oven until warm or reheat in a skillet over medium-low heat.

Nutrition

Calories: 173kcal, Carbohydrates: 15g, Protein: 8g, Fat: 11g, Saturated Fat: 7g, Cholesterol: 27mg, Sodium: 640mg, Potassium: 604mg, Fiber: 6g, Sugar: 3g, Vitamin A: 1490IU, Vitamin C: 130mg, Calcium: 171mg, Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Made this recipe?Leave a comment below!
5 Secrets to Healthier Family Dinners
Tips & recipes for getting yummy — and healthy — meals on the table.

You May Also Like

Thanks for
Stopping By!

I’m London! Join me as we cook up nourishing meals for you and your loved ones and learn a few healthy cooking tips and tricks!

Leave a comment

Your email address will not be published. Required fields are marked *

Recipe Rating




Comments

  1. 3 stars
    Question/ in the ingredients you listed Garlic yet in the directions I’m not seeing when Garlic is added. Is it minced and added into the mixture or is it sort of sautéed/baked along with the Brussel Sprouts? This looks amazing, I’d love to add this to my upcoming Thanksgiving meal.

    1. Thank you for catching that! I’ll update it now.

      Yes, the garlic goes into the butter mixture that you pour over the smashed sprouts.