Brussels sprouts are often overlooked, but when roasted with garlic, Parmesan cheese, and crunchy walnuts, they transform into a mouthwatering dish that even skeptics will love. The combination of crispy sprouts, savory cheese, and nutty walnuts makes for an irresistible side dish that perfectly complements any main course. Whether you’re hosting a holiday dinner or just looking to upgrade your weeknight meal, this “Garlic Parmesan Roasted Brussels Sprouts with Walnuts” recipe is sure to impress.
In this article, we’ll provide a detailed overview of how to prepare these delicious Brussels sprouts. We will also include all the nutritional details, cooking times, benefits, and useful tips to ensure you achieve perfect results every time. Let’s dive into this culinary delight!
Ingredients
Before we get into the step-by-step directions, let’s go over the ingredients you’ll need to prepare this tasty dish:
- 1 lb Brussels sprouts, halved 🥦
- 2 tablespoons olive oil 🫒
- 2 cloves garlic, minced 🧄
- 1/2 cup grated Parmesan cheese 🧀
- 1/4 cup chopped walnuts 🥜
- Salt and pepper to taste 🧂
These ingredients are easy to find and work harmoniously to create an explosion of flavors. Now that we have everything ready, let’s proceed to the cooking instructions.
Preparation Information
- Prep Time: 10 minutes
- Cooking Time: 25-30 minutes
- Total Time: 35-40 minutes
- Servings: 4
- Calories per Serving: Approximately 180 kcal

Directions
1. Prepare the Brussels Sprouts
The first step in creating this delightful dish is to prepare the Brussels sprouts. Start by washing them thoroughly under cold water to remove any dirt or debris. Then, trim off the tough ends and cut each sprout in half lengthwise. Halving them ensures that they cook evenly and develop a crispy exterior during roasting.
- Pro Tip: Choose Brussels sprouts that are similar in size so they cook uniformly. If some are larger than others, consider quartering the bigger ones.
Next, preheat your oven to 400°F (200°C). Preheating the oven is essential for achieving a crispy, caramelized texture on the Brussels sprouts.
In a large bowl, toss the halved Brussels sprouts with olive oil, minced garlic, salt, and pepper. Make sure every sprout is well-coated with the mixture for an even flavor distribution.
- Keyword Note: This section focuses on the preparation of garlic Parmesan Brussels sprouts to ensure SEO relevance.
2. Roast the Brussels Sprouts
Once the Brussels sprouts are coated, spread them in a single layer on a baking sheet. It’s important to use a large enough baking sheet so that the sprouts have space between them—this prevents steaming and helps them crisp up nicely.
Place the baking sheet in the preheated oven and roast the Brussels sprouts for 20-25 minutes, flipping them halfway through. This helps ensure that all sides become beautifully golden brown.
- Tip: Use parchment paper on the baking sheet for easier cleanup and to prevent sticking.
3. Add Walnuts and Parmesan
After 20 minutes of roasting, it’s time to add the extra magic—walnuts and Parmesan cheese. Sprinkle the chopped walnuts and grated Parmesan over the Brussels sprouts and continue roasting for another 5 minutes. This step allows the cheese to melt, forming a delicious crust, and the walnuts to toast, enhancing their natural nutty flavor.
- Tip: Make sure the walnuts are spread evenly to prevent burning.
4. Serve and Enjoy
Remove the Brussels sprouts from the oven and serve them hot. The garlic Parmesan roasted Brussels sprouts with walnuts make for a delectable side dish that can be paired with roasted meats, pasta, or enjoyed on their own.
- Presentation Tip: Garnish with a little extra Parmesan for added flair.
Tips for Perfect Garlic Parmesan Roasted Brussels Sprouts
1. Use Fresh Brussels Sprouts
Always choose fresh Brussels sprouts for the best flavor and texture. They should be firm, bright green, and tightly packed. Avoid any that have yellow leaves or a strong sulfur smell, as these can be signs of age.
2. Don’t Overcrowd the Baking Sheet
To achieve a crispy exterior, it’s essential that the Brussels sprouts have space on the baking sheet. Overcrowding causes the sprouts to steam instead of roast, leading to a mushy texture.
3. Flip for Even Roasting
Flipping the Brussels sprouts halfway through roasting ensures that they cook evenly and get crispy on all sides. Use tongs or a spatula to gently turn them over.
4. Add a Squeeze of Lemon
For an extra burst of freshness, consider squeezing some lemon juice over the Brussels sprouts before serving. The acidity of the lemon balances out the rich flavors of the cheese and walnuts.
Benefits of Brussels Sprouts
Brussels sprouts are a powerhouse of nutrients, making this dish both delicious and nutritious. Here are some health benefits of incorporating Brussels sprouts into your diet:
1. Rich in Vitamins and Minerals
Brussels sprouts are an excellent source of Vitamin C, which helps boost immunity, and Vitamin K, which supports bone health. They also contain important minerals like potassium and folate.
2. High in Fiber
Dietary fiber is essential for maintaining digestive health, and Brussels sprouts are rich in fiber. Eating fiber-rich vegetables helps to keep you full longer, supports gut health, and can aid in maintaining a healthy weight.
3. Contains Antioxidants
Brussels sprouts are packed with antioxidants like kaempferol, which help reduce inflammation and protect the body from oxidative stress. These antioxidants can reduce the risk of chronic diseases.
4. Supports Heart Health
The omega-3 fatty acids in walnuts combined with the fiber in Brussels sprouts can help maintain a healthy heart by reducing bad cholesterol and supporting overall cardiovascular health.
Common FAQs About Garlic Parmesan Roasted Brussels Sprouts
1. Can I Use Frozen Brussels Sprouts?
While fresh Brussels sprouts are ideal for this recipe, you can use frozen ones if necessary. Just be sure to thaw them completely and pat them dry before roasting to avoid excess moisture, which can make them soggy.
2. How Can I Store Leftovers?
If you have leftovers, store them in an airtight container in the refrigerator for up to 3 days. Reheat them in the oven at 350°F (175°C) for about 10 minutes to regain their crispiness.
3. Can I Add Other Vegetables?
Absolutely! This recipe is versatile, and you can add other vegetables like carrots, bell peppers, or red onions. Just make sure to adjust the roasting time accordingly to ensure all vegetables are cooked evenly.
4. Are There Other Cheese Options?
If you don’t have Parmesan cheese, you can use Pecorino Romano or Asiago. Just keep in mind that these cheeses may have a slightly different flavor profile, but they will still work well with the Brussels sprouts.
5. Can I Make This Dish Vegan?
To make this dish vegan, simply omit the Parmesan cheese or use a vegan cheese substitute. Nutritional yeast is another great alternative that can add a cheesy flavor without dairy.
Additional Tips for Making the Best Roasted Brussels Sprouts
1. Experiment with Spices
For extra flavor, consider adding spices like smoked paprika, red pepper flakes, or Italian seasoning to the Brussels sprouts before roasting. These spices can add a deeper dimension to the dish.
2. Add a Touch of Sweetness
For a unique twist, drizzle the Brussels sprouts with balsamic glaze or honey right before serving. The sweetness pairs beautifully with the savory garlic and Parmesan flavors, creating a delightful contrast.
3. Use a Cast-Iron Skillet
If you want an extra-crispy result, consider roasting the Brussels sprouts in a cast-iron skillet. The skillet retains heat well, resulting in a perfectly crispy exterior.
Nutritional Benefits of Walnuts
Walnuts are a key component of this recipe, and they come with their own set of nutritional benefits. Here’s why you should love walnuts:
- Rich in Omega-3 Fatty Acids: Walnuts are an excellent source of plant-based omega-3s, which are great for heart health.
- High in Antioxidants: The antioxidants in walnuts help reduce inflammation and protect against disease.
- Supports Brain Health: Walnuts contain nutrients that are believed to support brain function and improve cognitive performance.

Conclusion
“Garlic Parmesan Roasted Brussels Sprouts with Walnuts” is an easy and flavorful side dish that combines the savory taste of Parmesan, the nuttiness of walnuts, and the fresh crunch of Brussels sprouts. This versatile dish is perfect for holiday gatherings or weeknight dinners and pairs beautifully with a wide variety of main courses.
With the tips provided above, you can customize the dish to your liking and make it uniquely yours. Whether you’re serving it as a side or enjoying it as a healthy snack, these roasted Brussels sprouts are sure to become a favorite in your household.
We hope this comprehensive guide has inspired you to get in the kitchen and make these incredible Brussels sprouts. Don’t forget to share this recipe with friends and family—they’ll love it too!
Enjoy your cooking journey, and feel free to experiment with new flavors to make this dish your own. Happy roasting! 🥦🧄🍽️