Name: Reuben Casserole Recipe
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 6-8 slices light rye bread, cubed; 2 Tablespoons unsalted butter, melted; 1/2 teaspoon garlic powder; 1/2 teaspoon onion powder; 1 teaspoon caraway seeds; 1/2 teaspoon salt; 1/4 teaspoon black pepper; 1 pound deli corned beef, coarsely chopped; 14.5 ounces sauerkraut, drained and rinsed; 1 1/2 cups Thousand Island dressing; 2 cups shredded Swiss cheese, divided

Jump to Recipe· 4.4 from 6 reviews

This Reuben Casserole Recipe is a hearty, comforting twist on the classic deli sandwich that wraps all your favorite flavors into one warm, cheesy bake. Imagine layers of tangy sauerkraut, savory corned beef, and melting Swiss cheese nestled between buttery, seasoned rye bread cubes, all brought together with zesty Thousand Island dressing. It’s the perfect dish to satisfy those craving a Reuben without the hassle of making individual sandwiches, and it serves a crowd with ease, making it a true crowd-pleaser any day of the week.

Ingredients You’ll Need

Several white bowls are arranged on a white marbled surface, each holding different ingredients. One bowl holds shredded pale yellow sauerkraut, another has shredded white cheese, and a third is filled with pink diced meat. There are small white bowls with light brown and white powders, black pepper, and seeds. A larger bowl is filled with cubed bread pieces in light beige tones. A clear glass bowl holds melted yellow butter, and another white bowl contains a creamy light orange sauce. The bowls are neat and evenly spaced. Photo taken with an iphone --ar 4:5 --v 7

Gathering simple ingredients is the key to this recipe’s success. Each element brings something special—whether it’s the rye bread’s nutty crunch, the boldness of corned beef, or the creamy tang of Thousand Island dressing—to ensure every bite bursts with classic Reuben flavor and delightful textures.

Light rye bread (6-8 slices, cubed): The foundation that soaks up all the delicious flavors while adding a slight nutty taste.

Unsalted butter (2 tablespoons, melted): Adds richness and helps crisp up the bread cubes perfectly in the oven.
Garlic powder (1/2 teaspoon): A subtle kick that enhances savory depth without overpowering the other ingredients.
Onion powder (1/2 teaspoon): Brings a gentle sweetness that harmonizes with the cured corned beef.

Caraway seeds (1 teaspoon): Classic spice for rye, giving the dish that authentic Reuben aroma and slight earthiness.
Salt (1/2 teaspoon): Balances all the bold flavors and enhances every ingredient.
Black pepper (1/4 teaspoon): Adds a touch of warmth and a subtle bite.

Deli corned beef (1 pound, coarsely chopped): Juicy, tender, and packed with rich, salty flavor.
Sauerkraut (14.5 ounces, drained and rinsed): The tangy, fermented star that cuts through the richness beautifully.
Thousand Island dressing (1 1/2 cups): Creamy, sweet, and slightly tangy, it ties all layers together delightfully.

Shredded Swiss cheese (2 cups, divided): Melts perfectly to create that gooey, luscious topping and inner layers.

How to Make Reuben Casserole Recipe

Step 1: Prep Your Oven and Dish

Start by setting your oven to 375°F (190°C) and lightly greasing a 9×13-inch baking dish. This simple step prevents sticking and ensures your casserole comes out beautifully when it’s time to serve.

Step 2: Season and Coat the Bread Cubes

In a large bowl, toss the cubed rye bread with melted butter, garlic powder, onion powder, caraway seeds, salt, and black pepper. This seasoning mix elevates the bread, giving each cube a wonderful burst of flavor that will soak into the layers.

Step 3: Build Your First Layer

Spread half of your seasoned bread cubes evenly at the bottom of your prepared dish. This creates a solid, flavorful base to catch all the delicious juices and toppings to come.

Step 4: Add Layers of Goodness

Scatter half of your chopped corned beef over the bread layer, ensuring it’s evenly spread for consistent bites. Then spoon half of the drained sauerkraut on top, adding that unmistakable tang and slight crunch. Next, pour ¾ cup of Thousand Island dressing evenly over the sauerkraut, smoothing it out to cover all the sauerkraut. Finish the first layer with a generous sprinkle of 1 cup shredded Swiss cheese for that melty, cheesy texture.

Step 5: Repeat and Prepare to Bake

Build a second identical layer by repeating all the previous steps with the remaining bread cubes, corned beef, sauerkraut, dressing, and finally topping with the last cup of Swiss cheese. Once assembled, cover the dish tightly with foil to keep moisture in while baking.

Step 6: Bake to Perfection

Bake your casserole covered for 20 minutes, then remove the foil and continue baking for another 10-15 minutes until the cheese is bubbly and golden brown. This step is where all layers meld into one irresistible melty, savory masterpiece.

Step 7: Rest and Serve

Allow the casserole to cool for 5-10 minutes out of the oven. Resting lets the Reuben Casserole Recipe set up nicely so it slices and serves easily without falling apart—plus, it gives you a moment to savor that delicious aroma before digging in.

How to Serve Reuben Casserole Recipe

The dish shows a close-up of a creamy baked casserole with three main layers: a bottom layer of shredded light brown cabbage mixed with small pieces of pinkish-red meat, a middle layer where the cabbage and meat blend with a creamy sauce, and a top layer of melted light golden cheese sprinkled with small green herbs. A silver fork is pulling a portion from the main serving on a white plate with a textured rim, set against a white marbled surface. The cheese layer bubbles slightly at the edges, and strands of cabbage and meat stretch as the fork lifts the food. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Adding a few fresh garnishes can brighten each plate. Try topping with chopped fresh parsley or a sprinkle of sliced green onions to add a pop of color and a fresh contrast to the rich casserole. Pickles on the side or a dollop of extra Thousand Island dressing also complement this dish beautifully.

Side Dishes

This casserole is hearty, so pairing it with light, crisp sides works well. Consider a simple green salad with lemon vinaigrette or steamed green beans to balance the richness. For a cozy meal, a bowl of creamy tomato soup makes a perfect companion and echoes the comforting vibe.

Creative Ways to Present

If you want to impress guests, serve the casserole in individual ramekins or mini cast iron skillets for a charming touch. Layering it in clear glass dishes also allows everyone to admire the beautiful layers before digging in—a feast for the eyes and the taste buds.

Make Ahead and Storage

Storing Leftovers

Your Reuben Casserole Recipe keeps well in the fridge for up to 3 days, making it perfect for meal prep or enjoying the next day. Store leftovers in an airtight container to maintain freshness and prevent the bread from getting soggy.

Freezing

This casserole freezes beautifully! After baking, let it cool completely, then portion into freezer-safe containers. You can freeze it for up to 2 months. To enjoy later, thaw in the fridge overnight before reheating.

Reheating

Reheat leftovers by covering the casserole loosely with foil and baking at 350°F until warmed through, about 20 minutes. For individual servings, microwaving on medium power in short intervals works well; just be sure to check frequently to avoid drying out.

FAQs

Can I use a different type of bread for this casserole?

Absolutely! While light rye bread is traditional and adds authentic flavor with its caraway notes, you can substitute with pumpernickel or a sturdy whole wheat bread if preferred. Just ensure it’s not too soft so it holds up in the bake.

Is it possible to make this dish vegetarian?

Definitely! Replace the corned beef with a plant-based deli meat alternative or roasted mushrooms for a similar texture. Use vegetarian Thousand Island dressing and keep the rest of the ingredients the same to keep that classic Reuben flavor.

How do I ensure the casserole doesn’t get soggy?

Rinsing and thoroughly draining the sauerkraut and coating the bread cubes with melted butter help prevent sogginess. Also, letting the casserole rest before serving allows excess moisture to absorb evenly.

Can I prepare this casserole ahead of time before baking?

Yes! Assemble the casserole completely, cover it tightly, and store it in the fridge for up to 24 hours before baking. This allows the flavors to meld even more, making it a great make-ahead meal.

What can I use instead of Thousand Island dressing?

You can make your own by mixing mayonnaise, ketchup, a little sweet pickle relish, and a splash of vinegar or lemon juice. This homemade version keeps that signature tang and sweetness that’s essential to a Reuben flavor profile.

Final Thoughts

If you love the traditional Reuben sandwich but want to skip the fuss of making individual sandwiches, this Reuben Casserole Recipe is your new best friend. It’s cozy, cheesy, packed with bold flavors, and ideal for feeding a group or enjoying leftovers that taste just as fantastic. So go ahead, give this casserole a try—it’s sure to become a beloved staple in your recipe collection!