Easy Keto Reuben Casserole Recipe

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If you love the bold, tangy flavors of a classic Reuben sandwich but are following a low-carb lifestyle, this Easy Keto Reuben Casserole is your dream come true. It captures everything you crave—savory corned beef, tangy sauerkraut, creamy dressing, and melty cheese—in one satisfying, no-bun-needed dish.

This casserole is a true comfort food staple, offering that deli-style richness in an easy, weeknight-friendly format. With just a few simple steps and minimal prep time, you can bring the essence of a New York deli into your keto kitchen without the bread or the guilt.

Reuben lovers will rejoice in how faithfully this dish delivers on flavor. It’s hearty, gooey, and oh-so-satisfying. Each bite is loaded with layers of texture and taste—from the salty corned beef to the creamy homemade Russian-style dressing, all baked under a bubbling layer of Swiss cheese.

Unlike the traditional sandwich that can leave you feeling weighed down, this keto-friendly casserole keeps it light on the carbs but heavy on flavor. It’s perfect for anyone trying to stick to their goals while still enjoying their favorite comfort meals.

The best part? It’s incredibly easy to throw together. Everything bakes in one dish, making cleanup a breeze. Plus, it reheats beautifully, so it’s ideal for meal prep and leftovers.

Another reason we love this recipe is its versatility. Want to swap corned beef for pastrami or turkey? Go for it. Prefer cheddar over Swiss? Totally fine. This casserole is forgiving and adaptable, so you can make it your own.

It’s also a crowd-pleaser. Even your non-keto family members will be reaching for seconds. The layers of flavor are universally appealing, and it’s a fun way to enjoy a classic in casserole form.

This dish is especially popular around St. Patrick’s Day when corned beef is in abundance, but honestly, it’s too good to reserve for one holiday. Make it a staple in your meal rotation—it’s that good.

The homemade dressing is another highlight. Made with keto-friendly ingredients, it adds a creamy, tangy note that ties the whole dish together. You’ll want to drizzle it over everything once you taste it.

Don’t be surprised if this becomes one of your most-requested dinners. It’s satisfying enough to serve to guests, yet simple enough to whip up on a busy night. Just layer, bake, and dig in.

And unlike many low-carb dishes that require specialty flours or long ingredient lists, this one sticks to basics. You’ll probably have everything you need on hand already.

So if you’re craving something hearty, cheesy, and full of bold flavor, this Keto Reuben Casserole is calling your name. It’s all the satisfaction of a deli sandwich—no bread required.

Try it once and you’ll see why keto eaters everywhere have fallen for this comfort food favorite. It’s rich, cheesy, tangy, and incredibly craveable.

Servings: 6 servings

Time:

• Prep Time: 10 minutes
• Cook Time: 25 minutes
• Total Time: 35 minutes

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:

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

Tips:

• 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.

Why You’ll Love This Recipe:

• All the classic Reuben flavor without the carbs
• Ready in just 35 minutes
• Great for weeknight meals or meal prep
• Naturally gluten-free and keto-friendly
• Simple ingredients, big flavor

Summary: 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.