Reuben Casserole

This Reuben casserole features all the classic components of a mouth-watering Reuben sandwich that’s layered into a baking dish and served family-style. It’s basically a deconstructed deli sandwich, but with plenty to go around the table!

  • Total 1 hour 5 minutes
  • Serves 12 servings
  • Dinner
  • American
Jump to the recipe
plate of Rueben Casserole

This Reuben casserole features all the classic components of a mouth-watering Reuben sandwich that’s layered into a baking dish and served family-style. It’s basically a deconstructed deli sandwich, but with plenty to go around the table!

pan of Rueben Casserole more

Why this recipe works

This Reuben casserole is brimming with sweet, tangy, and savory flavors between the sauerkraut, corned beef, rye bread, Swiss cheese, pickles, and thousand island dressing! Combining all the key ingredients for a Reuben sandwich into one bubbly hot casserole dish is one of the easiest and tastiest ways to use up leftover corned beef.

We love Reubens so much around here that we’ve also concocted a homemade Reuben dip for parties and get-togethers. You can never really have enough versions of your favorite foods, right?

spatula of Rueben Casserole

Ingredients you will need

Get all measurements, ingredients, and instructions in the printable version at the end of this post.

Rueben Casserole ingredienets

Ingredient Info and Substitution Suggestions

BREAD – We used marble rye bread but you can also use pumpernickel. Dark, light, or Russian rye bread will work as well.

PICKLES – These are optional but make an awesome addition.

CORNED BEEF – If you prefer, you can chop the corned beef into chunks instead of slices. Feel free to substitute the corned beef with pastrami if preferred.

How to Make Reuben Casserole

These step by step photos and instructions are here to help you visualize how to make this recipe. You can Jump to Recipe to get the printable version of this recipe, complete with measurements and instructions at the bottom.

  1. Preheat oven to 400 F.
  2. In a medium bowl, whisk Thousand Island dressing, egg, and mustard.thousand island dressing with egg in a bowlmustard over the top of thousand island dressing
  3. In a second medium bowl, combine sauerkraut and chopped pickles.sauerkraut and pickles in a bowl
  4. Slice the corned beef and the Swiss cheese slices into strips.
  5. Cut the bread into cubes.cubed rye bread, corned beef, and sliced swiss cheese
  6. In a 13×9 baking dish, add a layer of bread cubes.layer of cubed rye bread in a baking dish
  7. Next, add a single layer of corned beef strips.corned beef strips layered over bread cubes
  8. Add a layer of sauerkraut and pickles.sauerkraut and pickles on top of sliced corned beef in a baking dish
  9. Add a layer of Thousand Island dressing mixture.thousand island dressing layered on top of reuben casserole
  10. Finally, add a layer of Swiss cheese strips.swiss cheese strips on top of thousand island dressing for reuben casserole
  11. Add another layer of corned beef strips and a layer of sauerkraut mixture.layer of corned beef strips in a baking dishsauerkraut and pickle layer on top of reuben casserole
  12. Cover with foil and bake for 25 minutes.baking dish covered with foil
  13. Remove from oven and remove foil. Add a layer of bread cubes and sprinkle on the shredded Swiss cheese.adding bread cubes to the top of reuben casseroleshredded Swiss cheese on top of reuben casserole
  14. Bake for an additional 15-20 minutes, uncovered, until cheese is melted. Allow to rest for 5 minutes before slicing and serving.Reuben casserole in a baking dish

Frequently Asked Questions & Expert Tips

How do I store leftover Reuben casserole?

Store leftovers in an air-tight container or tightly wrapped with plastic wrap in the refrigerator for up to 3 days.

Can I make it in advance?

Yes, you can prepare this casserole up to step 11 a day in advance and store it, covered with an air-tight lid or plastic wrap, in the refrigerator. Continue with the remaining steps when you are ready to bake.

spatula in a pan of Rueben Casserole

Serving Suggestions

Reuben casserole is filling on its own but can be paired with a dinner salad, french fries, chips, or sliced pickles on the side just like you would with the classic sandwich. Alternatively, add some vegetables on the side to lighten it up. Broccoli, green beans, carrots, and asparagus are always great options.

More Casserole Recipes

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