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Radishes Au Gratin

Yields8 ServingsPrep Time15 minsCook Time1 hr 15 minsTotal Time1 hr 30 mins

A traditional Thanksgiving side dish, potatoes au gratin can be recreated in the keto way by substituting potatoes with radishes. Radishes are extremely low in carbohydrates but can mimic the potato texture especially when prepared in a creamy cheese sauce.

au gratin

 5 cups sliced radishes
 3 tbsp butter
 ½ large yellow onion, finely chopped
 1 cup heavy whipping cream
  cup Parmesan cheese, shredded
 1 cup cheddar cheese, shredded

1. Preheat oven to 350°F.


2. Slice radishes and set aside.


3. In a medium pot, melt the butter over low heat.


4. Add the onions and let cook until slightly tender, around 3 minutes.


5. Add the heavy whipping cream and let simmer for 4-5 more minutes, stirring occasionally.


6. Slowly add all cheeses, stirring as you add, to melt into a smooth, creamy mixture, about 5 minutes. Add salt and pepper, to taste and stir for 1 more minute.


8. Remove from heat, and grease an 8- or 9-inch square baking dish.


9. Layer with radishes to cover the bottom of the baking dish, and top with 1/5 of the melted cheese mixture.


10. Repeat step 9 until you are out of radishes and melted cheese, and bake for 1 hour.

Nutrition Facts

Serving Size 6 ounces

Servings 8

Amount Per Serving
Calories 264
% Daily Value *
Total Fat 23g36%
Total Carbohydrate 6g2%

Net Carbohydrate 4g2%
Dietary Fiber 2g8%
Sugars 4g
Protein 7g15%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.

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