There's nothing quite like the irresistible combination of savory roast beef, tangy sauerkraut, and creamy Thousand Island dressing layered between slices of crispy, butter-toasted rye bread. This Roast Beef Reuben takes a classic deli favorite and gives it a hearty twist that’s perfect for lunch, dinner, or even a casual get-together.

The first time I tried this variation, I was looking to use up some leftover roast beef from Sunday dinner. Little did I know it would become a household favorite, requested more often than the traditional corned beef version. Let’s dive into what makes this sandwich so special.

Why You'll Love This Roast Beef Reuben

Get ready to savor a sandwich that’s as comforting as it is satisfying. This Roast Beef Reuben is more than just a meal; it’s a flavor-packed experience.

First, it’s the perfect blend of textures and flavors. The tender roast beef, the crunch of tangy sauerkraut, the creaminess of melted Swiss cheese, and the buttery crispness of grilled rye bread – every bite is pure perfection.

It’s incredibly easy to make, requiring just a handful of simple ingredients. Whether you’re a seasoned cook or new to the kitchen, this recipe comes together in no time, making it ideal for busy weeknights or quick lunches.

This sandwich is also endlessly adaptable. Don’t have Thousand Island dressing on hand? No problem – it’s easy to whip up a homemade version with pantry staples like mayonnaise, ketchup, and pickles.

Finally, the Roast Beef Reuben is a crowd-pleaser. Serve it at a casual dinner party, and watch as everyone raves about your creative spin on the classic deli sandwich.

Ingredients Notes

The beauty of this Roast Beef Reuben lies in its simplicity. A few quality ingredients come together to create something truly spectacular.

Start with the rye bread. Its earthy, slightly tangy flavor pairs perfectly with the other components. Opt for fresh bakery rye or a loaf with caraway seeds for an extra pop of flavor.

Roast beef is the star here. Use thinly sliced deli roast beef or leftover roast from dinner. Either way, ensure it’s tender and full of flavor to complement the bold sauerkraut.

Speaking of sauerkraut, this ingredient is non-negotiable for an authentic Reuben experience. Drain it well before using to avoid soggy bread, and for a flavor boost, warm it up slightly in a pan before layering.

Swiss cheese ties everything together with its nutty, melty goodness. A good-quality Swiss, such as Emmental or Gruyère, works wonders.

Lastly, Thousand Island dressing adds the perfect touch of creaminess and tang. Store-bought is convenient, but homemade dressing takes this sandwich to the next level. All you need is mayonnaise, ketchup, sweet relish, and a splash of vinegar.

Don’t forget a few tablespoons of softened butter for grilling – this is what creates that golden, crispy exterior.

How To Make This Roast Beef Reuben

Crafting a Roast Beef Reuben is as straightforward as it is satisfying. Follow these simple steps, and you’ll have a deli-worthy sandwich in no time.

Start by preheating a large skillet or griddle over medium heat. While the skillet warms, spread softened butter on one side of each slice of rye bread. This ensures a crispy, golden crust.

Lay one slice of bread, buttered side down, in the skillet. Begin layering with a generous slice of Swiss cheese, followed by a hearty portion of roast beef. Top the beef with a spoonful of sauerkraut, spreading it evenly across the meat.

Next, drizzle or spread a layer of Thousand Island dressing over the sauerkraut. Place another slice of Swiss cheese on top, then finish with the second piece of rye bread, buttered side up.

Cook the sandwich for 3-4 minutes on each side, pressing lightly with a spatula to help everything meld together. You’ll know it’s ready to flip when the bottom slice is beautifully golden and crisp. Once both sides are grilled to perfection and the cheese is melted, transfer the sandwich to a cutting board and let it cool for a minute before slicing.

This process takes about 15 minutes total – a quick and easy way to enjoy an indulgent meal.

Storage Options

While this sandwich is best enjoyed fresh, you can prepare some components in advance to save time.

Store sliced roast beef in an airtight container in the refrigerator for up to 3 days. Keep sauerkraut in its original jar or transfer it to a sealed container; it can last for weeks in the fridge.

If you have leftover assembled sandwiches, wrap them tightly in foil or plastic wrap and refrigerate for up to 2 days. Reheat them on a skillet over low heat to revive the crispy bread and melty cheese.

Freezing isn’t ideal for assembled sandwiches due to the dressing and sauerkraut, but you can freeze roast beef slices separately for up to 3 months.

Variations and Substitutions

This Roast Beef Reuben is versatile, allowing you to customize it to your preferences.

Swap the roast beef for turkey or pastrami if you’re in the mood for a different protein. Each brings its own unique flavor to the sandwich.
If you’re not a fan of Swiss cheese, try provolone or cheddar for a milder, creamier option.
For a gluten-free version, use your favorite gluten-free bread. Just be sure to butter it well for that signature crispy texture.
Add a little heat with a few slices of pickled jalapeños or a dash of hot sauce mixed into the Thousand Island dressing.
Experiment with different breads, such as pumpernickel or multigrain, for a creative twist.

This recipe is all about embracing your taste preferences. Don’t be afraid to experiment and make it your own!