Keto Reuben Casserole

Keto Reuben Casserole

Keto Reuben Casseroles
Experience the Luck of the Irish! Keto Reuben Casserole

This weeks recipe is a Keto Reuben Casserole.  This a delicious keto low carb tribute to the classic Reuben Sandwich but with far less carbs.  This is a mild tasting casserole made with Corn Beef, Sauerkraut and caraway seeds to give it that authentic Reuben Sandwich taste.  Great for St. Patricks day, but truly great for anytime.

Keto Reuben Casserole
Keto Reuben Casserole – Just like a Reuben Sandwich but with fewer carbs


There’s nothing like a great Reuben sandwich, all year round, and especially on St. Patrick’s Day! Delicious melted Swiss cheese paired with tangy sauerkraut and the flavor of good corned beef in between layers of Rye bread. But what do you do when you no longer eat bread? A casserole of course! And my specialty here at cjsketokitchen 💗

I’ve come up with a simple and delicious way to create the exact same delicious flavors while sparing the heavy carb combo.

The Ruben is truly a classic… And for good reason. The usual components are corned beef, Swiss cheese, sauerkraut, and Russian or thousand Island dressing. The original sandwich is said to have been created back in the early 1900s.

As we are heading into March, I really enjoy trying to use something that could be made for a classic St. Patrick’s Day meal, and in this case it’s corned beef. Last year I made cabbage rolls ( check out the recipe here on our blog!) Corned beef and cabbage or classic St. Patrick’s day foods. At least here in the United States, and may be considered a more typically Irish-American dish, (I am both….my father’s grandmother was Irish ;)) But nonetheless, it’s fun to have options.

The original Reuben sandwich has been classically associated with kosher style delicatessens… Although it’s not kosher, because it contains both meat and cheese.

So there are a couple of things that really make this casserole taste so close to the real sandwich. First of all the addition of caraway seeds, to mimic the flavor of the Rye bread… Or maybe it’s the homemade thousand Island dressing. It really stands out here. And definitely save some of the thousand Islands to drizzle over your individual serving, it’s that good, you’ll want more than what’s already in the casserole.

Corned beef comes both in canned, and fresh varieties. I used fresh, and cooked in my slow cooker before shredding.. very easy and it turned out moist and flavorful.

Feel free to use steamed cabbage if you don’t care for sauerkraut. Although it doesn’t strongly overpower this dish in my opinion.

Happy st. Patrick’s Day! May there always be a pot of gold at the end of your rainbow.

Keto Reuben Casserole with Homemade Thousand Island Dressing
Keto Reuben Casserole with Homemade Thousand Island Dressing


This recipe was surprisingly delicious.  I say surprising because I was concerned about the use of the sauerkraut, and that it would overpower everything and it DID NOT!  In fact the sauerkraut added a nice flavor component, it was very mild.  My only issue with the casserole was that we needed to added more caraway seeds, and that was surprising because I saw how much Sarah added.  But if you really want to capture the rye bread taste we found that we needed more caraway, and we added them to our individual portions.  I am not Irish, but this was delicious.  I also really didn’t remember what Corn Beef tasted like and I’d never seen it freshly prepared; that tasted great as well and I love how Sarah prepared it in the crockpot as she slept during the day.  We hope you enjoy this recipe!  Don’t forget you can share photos or your creations over in the Facebook Group or on Pinterest.

Don’t forget to subscribe to our blog, if you haven’t already.  We plan on releasing keto recipes that will be exclusive for blog subscribers.  Also feel free to share this recipe with family and friends!

For a detailed cooking demonstration check out the video over on YouTube, and if you like these types of recipes consider subscribing to our YouTube channel.

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Reuben Casserole (Keto/Low Carb)
Reuben Casserole (Keto/Low Carb) – Delicious and easy to make.
4.50 from 2 votes

Keto Reuben Casserole

Course Keto casseroles, keto dinners, keto family style meals
Cuisine Irish
Keyword easy keto recipes, easy low carb recipes, keto casseroles, keto irish dish, low carb casseroles, low carb irish dish, St. Patricks Day Dinner
Servings 8 people
Calories 343kcal


  • 9 x 13 baking dish



    Thousand Island Dressing Ingredients

    • 3/4 cup mayonnaise
    • 2 TB no sugar ketchup
    • 1 TB white vinegar
    • 2 dill pickles or equivalent relish (not sweet relish)
    • Smoked paprika optional
    • 1 squirt Liquid Natural Sweetener Optional

    Casserole Ingredients

    • 1 LB cooked chopped corned beef
    • 1 cup sauerkraut well drained
    • 6 slices Swiss cheese 6oz
    • Caraway seeds To Taste optional



      Thousand Island Dressing Preparation

      • Combine dressing ingredients in jar or food processor. Set aside.

      Casserole Assembly Preparation

      • Place corned beef in the bottom of a 9x13 baking dish. Sprinkle with sauerkraut. Drizzle with half of thousand island dressing. Sprinkle caraway seeds evenly over the top. Cover with Swiss cheese. Bake at 350° For 20 minutes. Broil one to two additional minutes for browning. Let stand 15 minutes. Serve with remaining dressing.
      • Enjoy
        Keto Reuben Casserole


      Serving Size = 5 to 6 oz
      2 Net Carbs
      3 Total Carbs
      *All nutrition information is approximate. Please read and use your own labels for more precise information.  We provide these recipes to give you options for food choices on a Keto or Low Carb diet, it is YOUR responsibility to manage your individual daily macros.


      Serving: 5oz | Calories: 343kcal | Carbohydrates: 3g | Protein: 14g | Fat: 30g | Saturated Fat: 9g | Cholesterol: 59mg | Sodium: 1173mg | Potassium: 230mg | Fiber: 1g | Sugar: 1g | Vitamin A: 218IU | Vitamin C: 18mg | Calcium: 184mg | Iron: 1mg


      In this section we try and highlight other Keto recipes that might interest you.  This week we decided to highlight another very popular and easy to make Keto Cabbage Roll Casserole.

      Keto Cabbage Roll Casserole







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      1. Thank you, the keto reuben casserole is very good! I was surprised at how much it tasted like the actual sandwich! The Caraway seeds brought up flavor that was reminiscent of the rye bread part of the sandwich! The recipe is a great way to use left-over corned beef from the St. Patrick’s Day dinner.

      2. 5 stars
        I made this last night for supper, and wow!! It was definitely a big hit. We are looking forward to having more tonight as leftovers.
        Thank you for sharing such goodness.

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