Reuben Casserole is my go-to recipe when I’m craving those classic deli flavors but don’t have time to fuss with a traditional Reuben sandwich. In just over an hour, you’ll have all the tangy, cheesy goodness baked into one effortless dish. Whether it’s a hectic weeknight or you’re feeding a crowd, this easy Reuben casserole saves time and delivers big on flavor.

Forget grilling individual sandwiches or babying them over the stovetop. With this baked Reuben casserole method, the oven does all the work, and cleanup is a breeze. Trust me, this is one of those no-nonsense recipes that’ll have you wondering how you ever cooked it the old-fashioned way.

Why This Reuben Casserole Is a Game-Changer

Time-saving prep: No need to assemble and grill multiple sandwiches. Just layer everything in one dish and you’re good to go.
Hands-off cooking: Once it’s in the oven, you’ve got 45 minutes free to tackle anything else (even if it’s just relaxing).
One-dish cleanup: Say goodbye to a sink full of pans. All the magic happens in a single casserole dish.
Family-approved: The melty Swiss cheese and tangy sauerkraut make it a hit with kids and adults alike.

Equipment You’ll Need for This Reuben Casserole

You don’t need any fancy gadgets here, just a few kitchen staples:

Casserole dish: A 9×13-inch dish works best, but an 11×7-inch dish will give you a thicker casserole if you prefer.
Food processor: Needed to quickly turn rye bread into flavorful breadcrumbs. No food processor? A box grater or even tearing by hand works in a pinch.
Whisk and mixing bowl: Essential for combining the custard mixture (milk, eggs, dressing, and mustard).

Pro tip: Be sure to use nonstick spray, so cleanup is effortless!

Simple Ingredients for Reuben Casserole

This easy Reuben casserole is all about simple pantry staples and deli counter finds. Here are the stars of the show:

Rye bread: The hearty base that soaks up all the flavors. Use dark or light rye depending on your preference.
Pastrami or corned beef: Thinly sliced and packed with smoky, savory flavor. Either option works, so pick your favorite.
Sauerkraut: Draining it well is key to avoid sogginess. If you’re not a fan of extreme tang, give it a quick rinse and pat dry.
Swiss cheese: The gooier the better. Pre-shredded Swiss saves time, but grating your own melts even creamier.

Shortcut tip: Grab pre-chopped pickles or use pickle relish if you’re short on time.

Reuben Casserole at a Glance

Servings: 12 servings
Prep Time: 20 minutes
Cook Time: 45 minutes
Total Time: 1 hour 5 minutes

Reuben Casserole Ingredients

6 slices rye bread (dark or light) (divided use)
1 pound thinly sliced pastrami or corned beef (divided use)
14.5 ounce can or jar sauerkraut, drained very well
4 cups shredded Swiss cheese (divided use)
1 cup chopped dill pickles
2 teaspoons caraway seeds (divided use)
1 cup milk
3 large eggs, beaten
⅓ cup thousand island dressing
¼ cup yellow mustard

How to Make Reuben Casserole

Preheat your oven to 350°F and coat an 11×7-inch or 9×13-inch baking dish with nonstick spray.
Cut 4 slices of rye bread into 2-inch cubes and spread evenly across the dish.
Pulse the remaining 2 slices of rye bread into breadcrumbs using your food processor. Set them aside.
Layer half the pastrami over the cubed bread base, followed by the sauerkraut, chopped pickles, and 1 teaspoon of caraway seeds.
Sprinkle 2 cups of shredded Swiss cheese evenly over the layers.
Add the remaining pastrami as the next layer, compacting everything slightly with your hands.
Top with the remaining 2 cups of Swiss cheese and another teaspoon of caraway seeds.
In a mixing bowl, whisk together the milk, eggs, thousand island dressing, and mustard until smooth.
Pour the mixture evenly over the casserole surface, letting it soak through the layers.
Sprinkle the rye breadcrumbs over the top and cover the dish with foil.
Bake for 45 minutes, then let rest for 5 minutes before slicing and serving.

Jake’s Tips for the Best Reuben Casserole

Toastier breadcrumb topping: Remove the foil for the last 10 minutes to let the top get golden and crispy.
Draining the sauerkraut: Press it between paper towels to remove excess moisture and avoid a watery casserole.
Make ahead: Assemble the casserole a day in advance and refrigerate. Just bake it fresh when ready to serve.
Batch cooking: Double the recipe and freeze one casserole for later. Simply thaw overnight and bake.

Easy Reuben Casserole Variations

Turkey Reuben: Swap pastrami for sliced turkey for a leaner option.
Vegetarian twist: Replace the meat with sautéed mushrooms for a hearty meat-free version.
Gluten-free option: Use gluten-free rye bread to accommodate dietary needs.
Extra cheesy: Mix some cheddar into the Swiss layer for added richness.

Reuben Casserole FAQs

Can I use a different kind of bread?

Definitely! While rye bread gives this best Reuben casserole recipe its signature flavor, pumpernickel or even sourdough can work.

How do I prevent the casserole from getting soggy?

Drain your sauerkraut thoroughly and compact the layers before adding the custard mixture to help prevent excess moisture.

Can I make this casserole ahead?

Yes! You can assemble everything the night before and refrigerate. Bake it fresh when you’re ready to serve.

How should I store leftovers?

Keep leftovers refrigerated in an airtight container for up to 3 days. Reheat portions in the oven to retain the crispy topping.

Can I freeze this baked Reuben casserole?

Absolutely. Freeze the baked casserole tightly wrapped for up to 2 months. Thaw overnight and reheat in the oven.

There you have it— a *Reuben Casserole* reinvented to save you time without skimping on taste. I know you’ll love this easy, crowd-pleasing meal. What’s your favorite kitchen shortcut? Let me know in the comments below!