1. Prep the Bread
Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish. Spread cubed rye bread on a baking sheet and toast lightly in the oven for 5–7 minutes.
2. Assemble the Layers
- Place half the bread cubes in the bottom of the dish.
- Top with half of the corned beef, half the sauerkraut, and half the Swiss cheese.
- Repeat layers with remaining ingredients.
3. Mix the Dressing Custard
In a bowl, whisk together dressing, mayonnaise, eggs, and milk until smooth. Pour evenly over the casserole.
4. Add Topping
Sprinkle with remaining Swiss cheese and drizzle with melted butter. Add caraway seeds if desired.
5. Bake
Cover with foil and bake for 30 minutes. Remove foil and bake another 15–20 minutes, until cheese is melted and bubbly, and the top is golden.
6. Serve
Let cool for 5 minutes before slicing. Serve hot with extra thousand island dressing on the side.
Tips for Success
- Dry the sauerkraut well – Too much liquid can make the casserole soggy.
- Use good bread – Rye is traditional, but pumpernickel or sourdough work too.
- Make ahead – Assemble the casserole, cover, and refrigerate overnight. Bake the next day.
- Add crunch – Top with buttered rye breadcrumbs for extra texture.
Fun Variations
- Turkey Reuben (Rachel Casserole) – Swap corned beef for turkey and sauerkraut for coleslaw.
- Low-carb option – Skip the bread and serve as a crustless Reuben bake.
- Spicy twist – Add a few slices of pickled jalapeños or drizzle with sriracha.
- Mini versions – Bake in muffin tins for individual servings.
What to Serve with Reuben Casserole
This hearty dish pairs wonderfully with lighter sides such as:
- A crisp green salad with vinaigrette
- Roasted or steamed vegetables
- Pickles (classic Reuben accompaniment)
- Roasted potatoes or fries
Why This Will Be a Family Favorite
The Layered Reuben Casserole Bake brings all the bold, tangy flavors of a deli sandwich into a dish that’s cozy, shareable, and satisfying. It’s the kind of meal that makes weeknights easier, potlucks more exciting, and leftovers even better the next day.
It’s nostalgic comfort food—familiar yet reimagined, easy to prepare, and guaranteed to make everyone come back for seconds.
Final Thought: If you love the classic Reuben, this Layered Reuben Casserole Bake will quickly become a staple in your kitchen. Easy, cheesy, tangy, and hearty—it’s the kind of dish that makes every bite feel like comfort.