Garlic Parmesan Roasted Radishes

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These garlic parmesan roasted radishes are infused with rosemary and are a great low-carb alternative to potatoes. Radishes are roasted to perfection, the perfect side dish for any meal. Super easy, delicious, and ready in 15 minutes.

These garlic parmesan roasted radishes are infused with rosemary and are a great low carb alternative for potatoes. The perfect keto side dish and only 2g net carbs! via @lowcarbspark

Radishes are a root vegetable that’s very low in carbs and high in fiber. While most root vegetables should be avoided on a low-carb diet, this is not the case.

Radishes provide only 3g carbohydrates per 100g, according to the USDA website. They are a great source of minerals and vitamins such as calcium, magnesium, potassium, vitamin C, and vitamin B6.

You can use radishes in tons of other different ways. For example, enjoy fried radishes or steam them and use them as a substitute for potatoes in potato salad or soups.

If you are looking for a great low-carb and keto side dish for your steak, these garlic parmesan roasted radishes are the perfect match. Radishes taste a little spicy and watery, but the magic happens when we roast them in the oven. They turn in this delicious potato replacement.

We absolutely love them from the bottom of our hearts.

roasted radishes

Are Radishes Keto-Friendly?

Radishes are a low-carb veggie that is perfect for following a keto-friendly diet. One medium radish contains only 0.1 grams of carbohydrates. Therefore, you’d have to eat ten radishes to get a single gram of carbohydrates. Furthermore, radishes are low in calories, high in fiber, and high in nutrients.

Why Are You Going To Love This Recipe

  • Made using just a handful of ingredients
  • It’s an extremely healthy side dish recipe.
  • The perfect side dish for many recipes.
  • You can make them ahead of time.

Ingredients For These Garlic Parmesan Roasted Radishes

Such a few ingredients are needed to create a delicious side dish. Here is everything you need to make it:

  • Radishes – make sure that you wash and dry them extremely well.
  • Garlic Cloves – you can also use powdered garlic, but I like using fresh ones for an intense taste.
  • Rosemary – this adds a lot of flavor to the dish, but you can replace it with oregano or dried parsley if you don’t like it.
  • Butter – if you want to make a vegan recipe, you can replace it with coconut or avocado oil.
  • Parmesan Cheese – use freshly shredded parmesan for an intense flavor.

How to Make Perfect Roasted Radishes

I’ll tell you the secret of how to make perfect roasted radishes every time. 

All you have to do after you season the radishes is to bake them long enough. Radishes have a higher water content than potatoes, so cooking takes longer. 

Here is everything you have to do to create these delicious roasted radishes:

  1. Buy fresh radishes and quarter them. 
  2. Add your favorite seasonings. I love to use rosemary, garlic, salt, and pepper. Then cover them in melted butter and a good amount of parmesan cheese.
  3. Then cover them in melted butter and a good amount of parmesan cheese.
  4. Bake them for about 25-30 minutes or until tender.
roasted radishes recipe

Storing Ideas

  • Fridge: Refrigerate any leftover roasted radishes in an airtight container. They’ll last 3 to 5 days in the fridge.
  • Freezer: Roasted radishes should not be frozen because the texture will degrade after freezing and thawing.

Serving Ideas

These Garlic Roasted Radishes are a low-carb side dish that’s perfect, especially for spring and summer. Here are some great ideas for serving them:

Frequently Asked Questions

What Are Radishes?

Radish dates back to antiquity, originating on the border between Europe and West Asia. They are essential ingredients of healthy salads, but many eat them raw on their own. This is for those who appreciate their taste, their spicy taste not being to the liking of many. 

How To Choose The Perfect Radishes

The riper they are, the spiciest the radishes are, so if you don’t like their spice too much, it’s a good idea to choose and buy younger radishes.

Radishes generally last quite well in the refrigerator but must be consumed within two weeks from the date of purchase to enjoy the full content of vitamins.

Are Radishes Healthy?

Sure, here is a list of some of the health benefits of consuming radishes:

  • Promotes digestion – radish is a natural remedy for digestive disorders; it is recommended to eat radish in case of liver problems, anorexia, indigestion, and intestinal fermentation;
  • Helps relieve kidney stone disease and symptoms, rickets, anemia, arthritis, demineralization, and rheumatism;
  • Strengthens hair and nails – to improve the condition of hair and nails, it is worth consuming radish every day; it will prevent hair loss and nail breakage;

Can I Make This Recipe In An Air Fryer?

Sure, you can also prepare these radishes in the air fryer. 

  1. Start by preparing the radishes just like I did in this recipe.
  2. Preheat the air fryer to 400 degrees and roast the radishes for 20 to 25 minutes. Remember to toss the radishes halfway through the cooking time.
  3. In the end, you can sprinkle over them the parmesan cheese and enjoy.

More Delicious Low Carb Side Dish Recipes

parmesan roasted radishes

Garlic Parmesan Roasted Radishes

5 from 8 votes

Prep time 5 minutes
Cook Time 50 minutes
Yelds 4 servings
Author Ioana Borcea from LowCarbSpark.com


These garlic parmesan roasted radishes are infused with rosemary and are a great low carb alternative for potatoes. The perfect keto side dish and only 2g net carbs!
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  • 2 bunches radishes quartered
  • 4 garlic cloves minced
  • 2 teaspoons rosemary fresh or dried
  • 2 tablespoons butter or extra virgin olive oil
  • sea salt and black pepper to taste
  • 1/4 cup Parmesan Cheese grated


  • Preheat oven to 400°F/ 200°C and line a baking sheet with parchment paper. Set aside.
  • In a large bowl add radishes, melted butter, minced garlic, rosemary, salt, and pepper. Toss well to combine. Roast for 25 minutes or until fork tender.
  • Sprinkle the parmesan cheese to coat all the radishes. Bake for another 5 minutes until crisp and golden.
  • Once done, serve the roasted radishes as a side dish or as a meal on its own. Enjoy!


The nutrition facts are for 1/4 of the entire recipe. My radishes were medium to small, and each bunch had 12 radishes. So with the ingredients, I used the serving size is about six whole roasted radishes. 
Don’t try to roast them at a higher temperature; the result will not be the same. Stick with a lower temperature, even if it takes longer to bake. It’s worth it. Adjust the roasting time depending on the size of the radishes and your oven type.
Nutrition Facts
Amount per serving.
Total Carbs
Net Carbs

How do we calculate the nutrition info?

These nutrition facts listed are determined using nutrition information from the USDA Food Database. Our nutrition facts are accurate, but if you are using different products, please make your calculations. Net carb count is calculated by subtracting both fiber and sugar alcohols because they don’t raise blood sugar.

Course Side Dish
Cuisine American
Keyword roasted radishes
Tried this recipe?Mention @LowCarbSpark or tag #LowCarbSpark!


Ioana is a food and travel lover. Her greatest passion is developing mouthwatering recipes that are comforting, easy to make, and budget friendly! She firmly believes that cooking should be fun! About me...

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Hello! My name is Ioana Borcea, and I'm here to provide you with mouthwatering recipes. This blog is all about sharing my favorite tested easy to make, delicious low-carb & keto, nutrient-dense recipes.

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