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If you have ever thought Brussels sprouts were just a boring vegetable on the side, wait until you try this sensational Crispy Roasted Mashed Brussels Sprouts with Parmesan Recipe. Imagine tender sprouts smashed to perfection, kissed with crispy golden edges, and sprinkled generously with nutty Parmesan cheese that takes every bite from simple to spectacular. This dish combines vibrant flavors, exciting textures, and an irresistible aroma that will have even the skeptics reaching for seconds. It’s the perfect way to elevate Brussels sprouts into a star on your dinner table, whether for a weeknight meal or a special occasion.

Ingredients You’ll Need
This recipe shines because it relies on straightforward, high-quality ingredients that work harmoniously to create incredible flavor and texture. Each ingredient plays a key role: from the fresh Brussels sprouts providing earthiness, to the Parmesan adding a savory twist, and the simple seasoning that brings all these elements together beautifully.
- 1 pound Brussels sprouts: Pick firm, bright green sprouts for the freshest flavor and best texture.
- 2 tablespoons canola oil or olive oil: This adds moisture and helps crisp the sprouts perfectly in the oven.
- 1/3 cup shredded Parmesan cheese: The salty, nutty cheese crisps up deliciously and enhances every bite.
- 1 teaspoon kosher salt: Essential for bringing out the natural flavors without overpowering them.
- 1/2 teaspoon freshly ground black pepper: Adds just the right touch of warmth and depth.
- 1/2 teaspoon red pepper flakes: This subtle kick livens up the dish without stealing the spotlight.
How to Make Crispy Roasted Mashed Brussels Sprouts with Parmesan Recipe
Step 1: Bring Water to a Boil
Start by heating a large pot with at least six cups of salted water on high until it reaches a vigorous boil. This salty water helps season the Brussels sprouts as they cook, softening them just enough for smashing without losing that fresh vegetable brightness.
Step 2: Preheat the Oven
Set your oven to 425 degrees Fahrenheit to get it hot and ready for roasting. That high temperature is crucial for creating those irresistible crispy edges on the Brussels sprouts that make this Crispy Roasted Mashed Brussels Sprouts with Parmesan Recipe so delightful.
Step 3: Prepare the Brussels Sprouts
While the water heats, give the Brussels sprouts a thorough rinse, trim off the stem ends, and peel away any outer leaves that look dry or damaged. This step ensures your sprouts roast evenly and look their best when plated.
Step 4: Parboil the Brussels Sprouts
Drop the trimmed Brussels sprouts into the boiling water and cook for 5 minutes if they’re small to medium or 7 minutes if large. This timing is important so the sprouts soften just right—tender yet still holding shape for the smashing step to come.
Step 5: Smash Your Sprouts
Drain the cooked Brussels sprouts well and spread them across two parchment-lined half sheet pans or one large pan. Using a heavy glass or sturdy mug, gently press down on each sprout until it flattens about halfway. This smashing technique creates more surface area to crisp up in the oven, enhancing both texture and flavor.
Step 6: Season and Add Parmesan
Drizzle the smashed Brussels sprouts with your oil and sprinkle on the red pepper flakes, kosher salt, and freshly ground black pepper. Toss gently to coat evenly, then shower with the shredded Parmesan cheese. This cheese layer is where the magic really begins, turning these little vegetable disks into a cheesy, golden masterpiece.
Step 7: Roast to Crispy Perfection
Pop the pans into your preheated oven and bake for about 15 minutes, keeping an eye for a gorgeous golden-brown, crunchy finish. When done, these crispy, flavorful sprouts are ready to wow your taste buds with every bite.
How to Serve Crispy Roasted Mashed Brussels Sprouts with Parmesan Recipe

Garnishes
For a finishing touch, try sprinkling some freshly chopped parsley or chives on top to add a fresh color and herbal bright note. A little squeeze of lemon juice just before serving can also brighten the flavors beautifully, balancing the richness of the Parmesan.
Side Dishes
This dish pairs wonderfully with roasted meats like chicken or pork, or alongside creamy mashed potatoes for a comforting dinner. It also shines as part of a vegetarian spread with hearty grains, roasted root vegetables, or a crisp garden salad to round out your meal.
Creative Ways to Present
Serve your Crispy Roasted Mashed Brussels Sprouts with Parmesan Recipe in shallow bowls topped with extra Parmesan shards or drizzle a balsamic glaze for a sophisticated twist. You can even layer them in a warm flatbread wrap with garlic aioli for a fun, handheld treat that’s packed with flavor.
Make Ahead and Storage
Storing Leftovers
Leftovers keep well in an airtight container in the refrigerator for up to three days. The crispy texture softens a bit but reheating brings back some of the delightful crunch, making for a great next-day snack or side.
Freezing
Freezing isn’t ideal for this recipe as the texture of Brussels sprouts changes after thawing and reheating. It’s best to enjoy this Crispy Roasted Mashed Brussels Sprouts with Parmesan Recipe fresh to truly appreciate the crispy edges and melty cheese.
Reheating
To reheat, spread the Brussels sprouts on a baking sheet and pop them back in a 375-degree oven for about 8 to 10 minutes. This helps restore their crispiness better than microwaving, which tends to make them soggy.
FAQs
Can I use frozen Brussels sprouts for this recipe?
While fresh Brussels sprouts are best for maximum flavor and texture, you can use frozen ones in a pinch. Just be sure to thaw and pat them dry thoroughly before boiling and roasting to avoid excess moisture that could prevent crisping.
What else can I add to enhance the flavor?
Feel free to experiment with minced garlic, smoked paprika, or a splash of lemon juice after roasting for extra complexity. Toasted pine nuts or chopped bacon bits also add delightful texture and taste.
Is this recipe gluten-free?
Yes! This Crispy Roasted Mashed Brussels Sprouts with Parmesan Recipe contains no gluten ingredients, making it naturally gluten-free and suitable for many dietary preferences.
How do I know when the Brussels sprouts are done roasting?
You want to look for deep golden edges and a wonderfully crisp exterior while the insides remain tender. The Parmesan should be melted and just beginning to brown for the perfect balance.
Can I make this recipe vegan?
To make it vegan, simply swap out the Parmesan cheese for a plant-based alternative or nutritional yeast, which will provide that cheesy umami flavor without dairy.
Final Thoughts
If you’re ready to give Brussels sprouts a starring role in your meals, this Crispy Roasted Mashed Brussels Sprouts with Parmesan Recipe is your new best friend. Crisp, cheesy, and bursting with flavor — it’s sure to convert even the most hesitant to a life of loving this underrated vegetable. Dive in, enjoy every bite, and watch this dish become a fast favorite at your table!
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Crispy Roasted Mashed Brussels Sprouts with Parmesan Recipe
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Total Time: 30 minutes
- Yield: 4 servings
- Category: Side Dish
- Method: Baking
- Cuisine: American
Description
This mashed Brussels sprouts recipe offers a delightful twist on a classic vegetable side dish, combining tender boiled sprouts that are smashed and baked with a flavorful blend of olive oil, red pepper flakes, kosher salt, black pepper, and shredded parmesan cheese to achieve a crispy, golden finish.
Ingredients
Vegetables
- 1 pound Brussels sprouts
Seasonings and Oils
- 2 tablespoons canola oil or olive oil
- 1 teaspoon kosher salt
- 1/2 teaspoon freshly ground black pepper
- 1/2 teaspoon red pepper flakes
Cheese
- 1/3 cup shredded parmesan cheese
Instructions
- Boil Brussels Sprouts: Heat a large pot with at least 6 cups of salted water over high heat and bring it to a boil. Wash, trim, and remove the outer leaves from the Brussels sprouts. Boil them for 5 minutes if small or medium-sized, or 7 minutes if large. Drain immediately in a strainer.
- Preheat Oven: While the Brussels sprouts are boiling, preheat your oven to 425 degrees Fahrenheit to prepare for baking.
- Smash Brussels Sprouts: Lay the boiled Brussels sprouts on two half sheet pans lined with parchment paper, or one large sheet pan. Using a heavy glass or mug, gently smash each sprout to flatten slightly, helping to increase the crispy surface area.
- Season and Add Cheese: Toss the smashed Brussels sprouts with the oil, red pepper flakes, kosher salt, and freshly ground black pepper to coat evenly. Then sprinkle the shredded parmesan cheese over them to add a savory, cheesy flavor.
- Bake to Crisp: Bake the prepared Brussels sprouts in the preheated oven for about 15 minutes, or until they become crispy and golden brown on the edges. Remove from oven and serve warm.
Notes
- You can use either canola oil or olive oil based on your preference; olive oil will add a richer flavor.
- Make sure to not overboil the Brussels sprouts to prevent them from becoming mushy.
- Smashing the Brussels sprouts increases the surface area allowing for a crispier texture during baking.
- For extra crispiness, place the sheet pans in the middle rack of the oven for even heat distribution.
- If parmesan is not available, a hard cheese like asiago or pecorino can be substituted.

