Keto Reuben Casserole: The Ultimate Low-Carb Comfort Dish

Enjoy all the classic Reuben sandwich flavors without the bread in this Keto Reuben Casserole. This easy, low-carb baked dish is packed with savory corned beef, tangy sauerkraut, and melty Swiss cheese, all covered in a creamy, flavorful dressing. It’s the perfect weeknight meal or a crowd-pleasing potluck option.

Gather these simple ingredients for a delicious Keto Reuben Casserole that everyone will love.

• Deli Corn Beef
• Sauerkraut
• Shredded Swiss cheese
• Mayonnaise
• Ketchup (sugar-free)
• Minced white onion
• Sugar-free granulated sweetener
• Dill Pickle Relish
• White vinegar

Make this Keto Reuben Casserole work for your needs with these easy ingredient swaps.

Corned Beef: You can use leftover corned beef from St. Patrick’s Day or any good quality deli corned beef. Ensure it’s not overly salty if you’re sensitive to sodium.

Sauerkraut: Any store-bought sauerkraut will work, but make sure to drain it very well to avoid a watery casserole. For a different flavor, you could try a dill pickle-flavored sauerkraut.

Cheese: Swiss cheese is traditional, but feel free to use a blend. Monterey Jack or a mild cheddar can also be added for extra creaminess and flavor. Ensure your cheese is full-fat for the best taste and texture.

Sugar-Free Ketchup: This is crucial for keeping the carb count low. Many brands now offer sugar-free versions, typically sweetened with stevia or monk fruit.

Sweetener: Use your favorite granulated sugar-free sweetener. The amount can be adjusted slightly to your preference, but it balances the tang of the other ingredients.

1. Prep Dressing: Preheat your oven to 400°F (200°C). In a small bowl, combine the mayonnaise, sugar-free ketchup, minced white onion, sugar-free sweetener, dill pickle relish, and white vinegar. Stir until well mixed.
2. Layer: Lightly spray a 9×13 inch baking dish with cooking spray. Spread the chopped corned beef evenly across the bottom of the dish.
3. Add Sauerkraut: Spoon the well-drained sauerkraut over the corned beef, spreading it to cover the meat.
4. Add Dressing: Pour and spread the prepared dressing evenly over the layer of sauerkraut.
5. Top with Cheese: Sprinkle the shredded Swiss cheese evenly over the dressing.
6. Bake: Place the dish in the preheated oven and bake for 20 minutes, or until the cheese is bubbly and golden brown on top.
7. Serve: Let the casserole rest for a few minutes before serving hot.

• Watery Casserole: Not draining the sauerkraut thoroughly is a common mistake. Always squeeze out as much liquid as possible before adding it to the dish to prevent a soupy result.
• Too much Onion: Using too much raw onion can overpower the other flavors. Ensure you mince it finely and use the specified amount for a balanced taste in the dressing.

• Spicy Kick: Add a pinch of red pepper flakes or a dash of your favorite sugar-free hot sauce to the dressing for a bit of heat.
• Add Veggies: While not traditional, you can add a layer of steamed broccoli florets or sautéed mushrooms beneath the sauerkraut for extra fiber and nutrients.

• Serve with a side salad dressed with a creamy ranch or blue cheese dressing.
• Enjoy it on its own for a hearty and satisfying meal.
• Pair with low-carb pickles or olives.

Can I make this ahead?

Yes, you can assemble the casserole ahead of time and refrigerate it. You may need to add a few extra minutes to the baking time if baking directly from the fridge.

How do I store leftovers?

Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. Reheat gently in the oven or microwave until heated through.

This Keto Reuben Casserole is a testament to how delicious and satisfying low-carb eating can be. It delivers all the beloved flavors of a classic Reuben in a comforting, easy-to-make casserole format. Enjoy this guilt-free indulgence any night of the week!

Keto Reuben Casserole

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A low-carb twist on the classic Reuben sandwich, featuring savory corned beef, tangy sauerkraut, and melty Swiss cheese in a creamy dressing, baked to perfection. Perfect for keto dieters seeking comfort food.

• Author: basma
• Prep Time: 15
• Cook Time: 20
• Total Time: 35
• Yield: 6–8 servings 1x
• Category: Keto Dinner
• Method: Baking
• Cuisine: American
• Diet: Keto

Ingredients

Scale 1x2x3x

1 pound Deli Corn Beef, chopped
1 cup Sauerkraut, drained well
2 cups Shredded Swiss cheese (or Swiss and Mozzarella blend)
½ cup Mayonnaise (full-fat)
4 tablespoons Ketchup (sugar-free)
2 tablespoons Minced white onion
2 teaspoons Sugar-free granulated sweetener
2 teaspoons Dill Pickle Relish
2 teaspoons White vinegar

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Instructions

Preheat oven to 375°F (190°C)
In a large bowl, mix mayonnaise, sugar-free ketchup, minced onion, sweetener, dill pickle relish, and white vinegar until smooth
Add chopped corned beef and drained sauerkraut, stir to coat evenly
Transfer mixture into a greased 9×13-inch baking dish
Top generously with shredded Swiss cheese
Bake for 20 minutes or until golden and bubbly
Let cool slightly before serving

Notes

Use leftover corned beef for convenience
Swiss cheese can be substituted with Gouda or a keto-friendly cheese blend
Ensure sauerkraut is thoroughly drained to prevent a soggy texture
Store leftovers in an airtight container, refrigerated up to 3 days

Nutrition

• Serving Size: 1 slice (1/8 of casserole)
• Calories: 320
• Sugar: 0g
• Sodium: 800mg
• Fat: 20g
• Saturated Fat: 9g
• Carbohydrates: 6g
• Fiber: 1g
• Protein: 18g
• Cholesterol: 70mg