Garlic Parmesan Roasted Radishes

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!

garlic parmesan roasted radishes recipe

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, vitamin B6.

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

Garlic Parmesan Roasted Radishes

The best low carb potato substitute

If you are looking for a fantastic 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 when we roast them in the oven, the magic happens. They turn in this delicious potato replacement.

We absolutely love them. From the bottom of our hearts.

roasted radishes

The question is: Do these roasted radishes taste exactly like potatoes? I say yes, my family agrees. If you are lucky enough, you’ll love them if not, the roasted radishes will be only another side dish to you.

How to make perfect roasted radishes?

I’ll tell you the secret on 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 it takes longer to cook.

Bake them for about 40-50 minutes.

Use your favorite seasonings. I love to use rosemary, garlic, salt, pepper. Then cover them in melted butter and a good amount of parmesan cheese.

roasted radishes recipe

Garlic Parmesan Roasted Radishes

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!
Course Side Dish
Cuisine American
Keyword roasted radishes
Prep Time 5 minutes
Cook Time 50 minutes
Total Time 55 minutes
Servings 4 servings
Calories 87kcal
Author Ioana Borcea from LowCarbSpark.com


  • 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 350 F and line a baking sheet with parchment paper. Set aside.
  • In a bowl add radishes, melted butter, minced garlic, rosemary, salt, and pepper. Toss well to combine. Roast for 45 minutes.
  • 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.


Serving: 1serving | Calories: 87kcal | Carbohydrates: 2g | Protein: 2g | Fat: 7g | Saturated Fat: 4g | Cholesterol: 19mg | Sodium: 170mg | Potassium: 128mg | Sugar: 1g | Vitamin A: 4.5% | Vitamin C: 10.1% | Calcium: 9.2% | Iron: 1.5%
Tried this recipe?Mention @LowCarbSpark or tag #lowcarbspark!

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About me

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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