Easy Keto Reuben Casserole is a low-carb twist on the classic deli sandwich, combining savory corned beef, tangy sauerkraut, creamy dressing, and melted cheese into a warm, baked dish. It captures all the bold, signature flavors of a traditional Reuben without the rye bread, making it perfect for a ketogenic lifestyle while still feeling indulgent and satisfying.
The base of this casserole is chopped or shredded corned beef, which provides a rich, salty, and slightly spiced flavor. It forms the hearty protein layer and pairs beautifully with the tangy elements in the dish. When baked, the corned beef becomes even more flavorful as it absorbs the creamy dressing and melted cheese.
Sauerkraut is a key ingredient that adds a sharp, tangy bite and a probiotic boost. It balances the richness of the meat and cheese while adding texture and depth. Properly draining the sauerkraut is important to prevent excess moisture and keep the casserole from becoming watery.
The creamy layer is inspired by Russian or Thousand Island dressing, typically made with mayonnaise, a small amount of sugar-free ketchup, mustard, and seasonings. This mixture brings a slightly sweet and tangy flavor that ties all the ingredients together and mimics the classic sandwich taste.
Swiss cheese is traditionally used to top the casserole, melting into a golden, bubbly layer that seals in moisture and adds a nutty richness. As the casserole bakes, all the layers meld together into a cohesive, comforting dish that delivers bold flavor in every bite.
Ingredients
- 400–500g corned beef, chopped or shredded
- 1 1/2 cups sauerkraut, drained well
- 1 cup shredded Swiss cheese
- 1/2 cup mayonnaise
- 2 tbsp sugar-free ketchup
- 1 tbsp mustard (Dijon or yellow)
- 1/2 tsp garlic powder
- 1/2 tsp black pepper
Instructions
- Preheat oven to 190°C (375°F) and grease a baking dish.
- Spread corned beef evenly in the dish.
- Layer drained sauerkraut over the beef.
- In a bowl, mix mayonnaise, ketchup, mustard, garlic powder, and pepper.
- Spread dressing mixture evenly over the top.
- Sprinkle Swiss cheese evenly over the casserole.
- Bake for 20–25 minutes until hot and bubbly with a golden top.
- Let rest for a few minutes before serving.
Nutrition Facts (Per serving, 6 servings total)
- Calories: ~420 kcal
- Protein: ~26 g
- Fat: ~34 g
- Net Carbs: ~4–5 g
- Fiber: ~1–2 g
- Sugar: ~2 g
