Some recipes just feel like a warm hug. For me, this classic Keto Radish Scalloped Potatoes Mock is one of them. It takes me right back to my grandma’s kitchen, where the smell of something creamy and baking in the oven meant family was gathering. It’s the perfect companion to a main course like our Keto Shrimp Scampi Cheese Shell Tacos.
If you’re living a low-carb life, you might miss those hearty, traditional sides. I know I did. That longing for a creamy, baked dish without the carbs is what led me to this recipe. It’s a beautiful bit of kitchen magic that gives you all the comfort with none of the guilt.

We’re using humble radishes here. When cooked, they lose their sharp bite and become wonderfully tender, almost buttery. They soak up the rich, cheesy sauce just like potatoes do. It’s a simple swap that feels like a small miracle on a fork.
Recipe Overview
- Cuisine: American Comfort Food
- Category: Side Dish
- Prep Time: 20 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour 5 minutes
- Servings: 6
The Story Behind This Classic Recipe
My grandma made the best scalloped potatoes. Her dish was a non-negotiable part of every holiday table. The pan was always scraped clean.
When I started my keto journey, I thought I’d have to say goodbye to that memory. I tried other substitutes, but nothing felt right. Then, on a whim, I tossed some sliced radishes into a cream sauce. The result was a shock. It wasn’t just “good for keto.” It was genuinely, deeply good food that reminded me of home.
This recipe is my tribute to her. It’s my way of keeping that tradition alive in my own kitchen, just tweaked a little for the way I eat now. The soul of the dish is exactly the same.
What Makes This the *Traditional* Way
True scalloped potatoes aren’t about fancy techniques. They’re about patience and good, simple ingredients. We stick to that spirit here.
The key is a from-scratch cream sauce. No canned soups here. We make a simple roux with butter and a bit of almond flour to thicken it the old-fashioned way. Then we slowly whisk in the cream. It creates a rich, velvety base that’s far superior to any shortcut.
Layering is also absolutely essential. You don’t just dump everything in. You carefully layer the radishes and sauce so every single slice gets coated. This ensures every bite is perfectly creamy and consistent, just like grandma’s.
The Classic Ingredients (No Fancy Stuff!)
You won’t need any special keto products for this. Just real, whole foods you can find anywhere. Here’s what you’ll need:
Keto Radish Scalloped Potatoes Mock Recipe

The Classic Ingredients (No Fancy Stuff!)
How to Make It Just Like Grandma Did
Notes
Enjoy your homemade Keto Radish Scalloped Potatoes Mock Recipe!
- 2 lbs fresh radishes, trimmed and thinly sliced
- 3 tbsp unsalted butter
- 2 tbsp almond flour
- 2 cloves garlic, minced
- 1 ½ cups heavy whipping cream
- ½ cup chicken or vegetable broth
- 1 ½ cups shredded sharp cheddar cheese, divided
- ½ cup grated Parmesan cheese
- 1 tsp dried thyme
- ½ tsp onion powder
- ¼ tsp ground nutmeg
- Salt and black pepper to taste
- Fresh chives, for garnish (optional)
How to Make It Just Like Grandma Did
Follow these steps and you’ll have a bubbling, golden dish of comfort in no time. Don’t rush the sauce—that’s where the flavor is born.
- Heat your oven to 375°F (190°C). Grease a 9×9 inch or similar baking dish well.
- Melt the butter in a medium saucepan over medium heat. Whisk in the almond flour and cook for 1 minute until it smells toasty.
- Add the minced garlic and cook for another 30 seconds, stirring constantly.
- Slowly pour in the heavy cream and broth, whisking continuously to avoid lumps. Let it simmer gently for 3-4 minutes until it starts to thicken slightly.
- Remove the sauce from the heat. Stir in 1 cup of the cheddar cheese, all of the Parmesan, thyme, onion powder, and nutmeg. Season well with salt and pepper.
- Arrange a third of your sliced radishes in the bottom of the baking dish. Pour a third of the cheese sauce over them. Repeat this layering two more times, ending with sauce.
- Sprinkle the remaining ½ cup of cheddar cheese evenly over the top layer.
- Cover the dish tightly with foil and bake for 30 minutes. Then, remove the foil and bake for another 15-20 minutes, until the top is golden brown and the radishes are tender when pierced with a fork.
- Let it rest for 10 minutes before serving. This lets the sauce set perfectly. Garnish with fresh chives if you like.
My Tips for Perfecting This Classic
A couple of small tricks make all the difference between good and great. This is what I’ve learned after making this dish dozens of times.
First, slice your radishes evenly. Use a mandoline if you have one. This makes sure they all cook at the same rate. Nobody wants a mix of mushy and crunchy bites.
Second, don’t skip the resting time after baking. I know it’s hard to wait when it smells so good. But those 10 minutes allow the creamy sauce to thicken up and cling to the radishes beautifully. It will hold its shape on your plate.
How to Store and Enjoy Later
This dish stores wonderfully, making it a fantastic make-ahead option for busy weeks. It pairs wonderfully with some warm Keto Rolls for a complete comfort meal.
Let any leftovers cool completely. Then, cover the baking dish tightly or transfer portions to an airtight container. It will keep in the fridge for 3-4 days.
To reheat, I find the oven works best to keep the texture right. Warm it at 350°F in a covered dish for about 15-20 minutes. You can also use the microwave for a single serving in a pinch.
I do not recommend freezing this one. The creamy sauce can separate and become grainy when thawed.
Nutrition Notes
Here’s a look at the approximate nutrition for one serving. It’s rich, satisfying, and fits beautifully into a keto lifestyle.
- Calories: 320
- Total Fat: 30g
- Net Carbs: 4g
- Protein: 9g
Your Questions About This Classic Recipe
I get a few questions about this recipe all the time. Here are the answers to help you out.
Can I use a different kind of cheese?
Absolutely! Gruyère is a classic, luxurious choice. Gouda or Monterey Jack would also be lovely. Just make sure you use a cheese that melts well for that perfect, gooey texture.
My sauce seems thin. Did I do something wrong?
Not at all. The radishes will release a bit of water as they bake. The sauce will seem thin when you pour it in, but it thickens up beautifully in the oven and during the resting time. Trust the process.

Do I have to peel the radishes?
No, you don’t! The skins are tender and add a lovely bit of color. Just give them a good scrub under cold water and trim the ends.
I hope this recipe finds its way to your family table. It’s more than just a low carb side. It’s a bowl of nostalgia, a reminder that comfort food can adapt with us. For another cozy, one-pot keto meal, you have to try our Cozy Low-Carb Instant Pot Lasagna Soup.
It proves that with a little creativity, we don’t have to give up the dishes that mean home. I’d love to hear if this brings back memories for you, too. Did your family have a special scalloped potato recipe? Let me know in the comments below, and please rate this recipe if you try it!




