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Easy Keto Reuben Casserole Recipe

This Easy Keto Reuben Casserole is a low-carb twist on a deli favorite, layered with corned beef, sauerkraut, melty cheese, and creamy keto Russian dressing. It’s a one-dish wonder that delivers major flavor and zero guilt—perfect for busy nights, holidays, or anytime you’re craving comfort food.
Print Recipe
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings 6

Ingredients
  

  • 1 lb cooked corned beef chopped or shredded (or use deli-sliced beef if preferred)
  • 1 cup sauerkraut drained well
  • 1 1/2 cups shredded Swiss cheese
  • 1/2 cup shredded mozzarella optional, for extra meltiness

For the Keto Russian Dressing:

  • 1/2 cup mayonnaise
  • 2 tbsp sugar-free ketchup
  • 1 tbsp dill pickle relish no sugar added
  • 1 tsp apple cider vinegar
  • 1/4 tsp paprika
  • Salt and pepper to taste

Instructions
 

  • Preheat your oven to 375°F (190°C). Grease an 8x8-inch baking dish.
  • In a small bowl, whisk together all ingredients for the keto Russian dressing.
  • Spread half the chopped corned beef in the baking dish.
  • Layer the sauerkraut evenly over the beef.
  • Drizzle half of the dressing over the sauerkraut.
  • Sprinkle with half the cheese mixture.
  • Repeat layers with remaining corned beef, dressing, and cheese.
  • Bake uncovered for 20–25 minutes, or until cheese is bubbly and golden.
  • Let cool slightly before serving.

Notes

  • Drain sauerkraut thoroughly to avoid excess moisture.
  • Use store-bought deli corned beef for quick prep.
  • Serve with a side salad or steamed veggies for a complete meal.
  • Store leftovers in an airtight container in the fridge for up to 4 days.