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Keto Reuben Casserole

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Last Updated on July 24, 2020

This post was updated in 2020 – original post date was in 2017. Enjoy!

Does it ever sometimes hit you just how much you miss bread? I know that I can make paleo versions of bread, but it’s just not quite the same for the most part. Sometimes you just want to bite into a cream cheese slathered bagel or the soft bread wrapped around a BLT. More recently, I’ve been craving the crispy, toasty rye bread that envelops the perfect Reuben sandwich.

Low-carb Reuben Casserole {keto} by Our Paleo Life

Of course this craving was not made any better when my well-meaning mom texted me a picture of the Reuben she was eating for lunch one day. She is lucky I already had this casserole in the oven otherwise that conversation could have taken a different turn.

Keto Reuben Recipe

Low-carb Reuben Casserole {keto} by Our Paleo Life

The thing that really makes this casserole taste so close to the real sandwich is the addition of the caraway seeds, to mimic the flavor of the rye bread. Or maybe it’s the homemade 1000 island dressing? Or the sauerkraut? Probably all of it, actually.

Low-carb Reuben Casserole {keto} by Our Paleo Life

I love to make my own sauerkraut and will often just add the caraway seeds right in there. Other times I leave them out and sprinkle the seeds right on top of the casserole. If you’re using sauerkraut that has caraway in it already, you could probably just omit them from the recipe or cut the amount in half.

Low-carb Reuben Casserole {keto} by Our Paleo Life

Homemade Thousand Island Dressing

And of course, save some 1000 island to drizzle over your own serving, because it is SO good, you’ll want more than what’s baked in to the casserole, I guarantee it.

Low-carb Reuben Casserole {keto} by Our Paleo Life

Reuben Casserole {keto, low-carb}

Yield: 8
Prep Time: 5 minutes
Cook Time: 15 minutes
Total Time: 20 minutes



  • 1 lb Corned Beef, already cooked
  • 1 cup Sauerkraut
  • 6 slices Swiss Cheese, or enough shredded to cover the top
  • 1/2 tsp Caraway Seeds, see notes

Thousand Island Dressing

  • 3/4 cup Paleo Lime Mayo
  • 2 Tbsp Tomato Sauce
  • 2 Kosher Dill Pickles, finely chopped
  • 1 Tbsp White Vinegar
  • 1/8 tsp Salt


  1. Preheat the oven to 350°F. Combine all the 'Thousand Island Dressing' ingredients in a glass jar, put a lid on it and seal it tightly, and shake real good until everything is combined. Set aside.
  2. Strain any extra liquid out of the sauerkraut and squeeze dry with paper towels. Set aside.
  3. Carve up the corned beef into bite-sized pieces. Try not to eat it all before it makes it into the casserole dish. Place the corned beef pieces in the bottom of a 9x13 baking dish.
  4. Evenly distribute the sauerkraut over the corned beef and drizzle about half of the Thousand Island Dressing over that. Cover the top with the Swiss cheese and sprinkle on the caraway seeds, if using.
  5. Bake in the preheated oven for 15 minutes, or until the top is bubbly and slightly golden. Remove from oven and serve hot with an additional drizzle of the remaining Thousand Island Dressing.


  • If your sauerkraut has caraway seeds in it already, use less in the casserole topping.
Nutrition Information
Yield 8 Serving Size 1 g
Amount Per Serving Calories 338Total Fat 30gSaturated Fat 8gUnsaturated Fat 0gCholesterol 58mgSodium 1009mgCarbohydrates 2gSugar 1gProtein 14g

Nutrition is calculated by a third party and may not be 100% accurate

This reuben casserole has all the flavor of your favorite sandwich but none of the gut-bloating carbs and grains. Make a corned beef brisket just for this casserole or make this as an excellent way to use up leftovers.

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Ashley Castro

Friday 12th of March 2021

How much thousand island should you use? If buying already made dressing?

Kendra Benson

Saturday 13th of March 2021

It's about 1 cup total (make sure you're only adding half to the casserole before baking, reserving the other half for serving).


Thursday 18th of April 2019

I think this looks really good but with the cheese it isn’t paleo. Is there a paleo version of this recipe or do you know of something to substitute?


Wednesday 20th of March 2019

This recipe sounds delicious but corned beef is quite a process to make so I too would like to know if you use deli corned beef. Thanks


Saturday 23rd of February 2019

Where do you buy already cooked corned beef? Are you talking about deli style corned beef?

Scott Dettelbach

Saturday 9th of February 2019

My fiancé and I have been fiending for ruebens and this is the perfect way to enjoy it on Keto. Can’t wait to try this for our Sunday dinner. Thanks for the recipe!

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