Reuben Casserole

If you love the bold, savory flavors of a classic Reuben sandwich, this Reuben Casserole is a delicious way to enjoy them in a warm, comforting baked dish. Layers of tender corned beef, tangy sauerkraut, melty Swiss cheese, and zesty Russian dressing are baked together with slices of hearty rye bread.

This easy casserole is perfect for a cozy family dinner, casual gathering, or St. Patrick’s Day meal. Instead of assembling individual sandwiches, everything is layered into one baking dish and baked until the cheese is bubbly and golden.

Why You’ll Love This Recipe

• Classic Reuben flavors: Corned beef, sauerkraut, Swiss cheese, rye bread, and Russian dressing bring all the familiar flavors together.
• Easy to assemble: Simply prepare the sauce, layer the ingredients, and let the oven do the work.
• Great for leftovers: It’s a delicious way to use leftover corned beef after a holiday meal.
• Cheesy and comforting: Melted Swiss cheese ties all the savory flavors together.
• Perfect for gatherings: This recipe makes 6 servings and is easy to serve straight from the baking dish.

Ingredients

• Rye bread: Provides the hearty, slightly tangy base that makes this casserole taste like a classic Reuben.
• Corned beef: The savory centerpiece of the casserole. Dice it into bite-sized pieces for easy layering and serving.
• Sauerkraut: Adds the signature tangy flavor that balances the richness of the meat, cheese, and sauce.
• Swiss cheese: Melts beautifully between the layers and creates a golden, bubbly topping.
• Russian dressing: Provides the creamy, tangy, slightly zesty flavor associated with a Reuben sandwich.
• Mayonnaise: Adds richness and helps create a creamy casserole sauce.
• Dijon mustard: Brings a little sharpness to the dressing mixture.
• Worcestershire sauce: Adds savory depth to the sauce.
• Caraway seeds: Optional, but they complement the rye bread and add an extra layer of traditional flavor.

How to Make Reuben Casserole

Step 1: Prepare the Oven

Preheat your oven to 375°F (190°C).

Lightly grease a 9×13-inch baking dish and set it aside.

Step 2: Make the Reuben Sauce

In a medium bowl, combine the Russian dressing, mayonnaise, Dijon mustard, Worcestershire sauce, and caraway seeds, if using.

Stir until the sauce is smooth and evenly combined. Set it aside while you assemble the casserole.

Step 3: Build the First Layer

Place half of the sliced rye bread across the bottom of the prepared baking dish.

Add half of the diced corned beef, followed by half of the drained sauerkraut and half of the shredded Swiss cheese.

Drizzle or spread half of the prepared dressing mixture over the layer.

Step 4: Add the Remaining Layers

Repeat the process with the remaining rye bread, corned beef, sauerkraut, and dressing.

Finish with a generous layer of the remaining Swiss cheese over the top.

Try to distribute the ingredients evenly so each serving contains a little bit of everything.

Step 5: Bake

Place the casserole in the preheated oven and bake for 25–30 minutes, or until the cheese is melted, bubbly, and golden brown.

The edges should be hot and bubbling when the casserole is ready.

Step 6: Rest and Serve

Remove the casserole from the oven and allow it to cool for a few minutes before serving.

This brief resting time allows the layers to settle, making the casserole easier to slice and serve.

Tips for Success

• Drain the sauerkraut well: Excess liquid can make the casserole soggy. Draining and rinsing it before assembling helps keep the layers balanced.
• Use good-quality rye bread: Since rye is an important part of the Reuben flavor, choose a loaf you enjoy eating on its own.
• Dice the corned beef evenly: Smaller pieces make it easier to distribute the meat throughout the casserole.
• Don’t skimp on the cheese: A generous layer of Swiss on top creates the delicious bubbly, golden finish.
• Use caraway seeds if you like traditional rye flavor: They complement both the rye bread and corned beef beautifully.
• Let it rest before cutting: A few minutes of resting makes the casserole easier to portion without immediately falling apart.

Equipment Needed

• 9×13-inch baking dish
• Medium mixing bowl
• Mixing spoon
• Measuring cups and spoons
• Knife and cutting board
• Spatula or serving spoon

Recipe Variations

Reuben Casserole with Thousand Island Dressing

If you prefer Thousand Island dressing to Russian dressing, use it as a simple substitute. It provides the same creamy, tangy style with a slightly sweeter flavor.

Extra Cheesy Reuben Casserole

Add a little extra Swiss cheese between the layers for an especially gooey casserole.

Crispy Rye Topping

Cut or tear a few extra pieces of rye bread into small pieces and scatter them over the top before baking for additional texture.

Spicy Reuben Casserole

Add a little prepared horseradish or a few dashes of hot sauce to the dressing mixture for extra heat.

Leftover Corned Beef Casserole

This recipe is an excellent way to transform leftover corned beef into another complete meal after St. Patrick’s Day or a holiday dinner.

Serving Suggestions

Because this casserole already contains bread, meat, cheese, and sauerkraut, it can easily work as a complete meal. Pair it with lighter sides to balance the richness.

Try serving it with:

• Green salad
• Coleslaw
• Roasted vegetables
• Pickles
• Potato salad
• Steamed green beans
• A simple cucumber salad

For a St. Patrick’s Day dinner, serve it alongside roasted vegetables and a crisp salad for a festive and satisfying meal.

Frequently Asked Questions

What is a Reuben casserole made of?

This casserole combines the classic ingredients of a Reuben sandwich: rye bread, corned beef, sauerkraut, Swiss cheese, and Russian dressing. The ingredients are layered and baked together until hot and bubbly.

Can I use leftover corned beef?

Absolutely. Leftover cooked corned beef is perfect for this casserole. Simply dice it into bite-sized pieces before layering it into the dish.

Can I substitute Thousand Island dressing?

Yes. Thousand Island dressing is a popular alternative to Russian dressing and works very well in this casserole.

Why should I drain the sauerkraut?

Sauerkraut contains quite a bit of liquid. Draining and rinsing it before adding it to the casserole helps prevent excess moisture from making the bread soggy.

Can I make this casserole ahead of time?

You can assemble the casserole ahead of time and refrigerate it until you’re ready to bake. For the best texture, allow it to sit briefly while the oven preheats before baking.

How many servings does this recipe make?

This recipe makes approximately 6 servings, making it a convenient option for a family dinner or small gathering.

Final Thoughts

This Reuben Casserole takes everything people love about the classic sandwich and turns it into an easy, cheesy baked meal. The combination of savory corned beef, tangy sauerkraut, Swiss cheese, hearty rye bread, and creamy Russian dressing delivers plenty of classic Reuben flavor in every bite.

Whether you’re looking for a creative way to use leftover corned beef or simply want a comforting casserole for dinner, this recipe is an easy and satisfying choice. Serve it warm with a crisp salad or your favorite vegetable side for a delicious meal the whole family can enjoy.

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