This homemade Reuben casserole is so easy to make!

A cozy casserole filled with corned beef, sauerkraut, and buttery cubes of rye are baked with Swiss cheese sauce until golden.

plated slice of Reuben Casserole

Reuben Sandwich Meets Casserole

  • This Reuben casserole recipe has the classic ingredients found in a Reuben sandwich with easy assembly.
  • It’s a great way to repurpose homemade corned beef but is great with deli corned beef too.
  • Prep ahead and refrigerate. Bake just before serving for an easy meal – and reheat leftovers for school and workday lunches!
rye bread , mustard , thousand island , garlic powder , Swiss cheese , caraway seeds , Worcestershire sauce , sauerkraut , corned beef and pickles with labels to make Reuben Casserole

Ingredients for Reuben Casserole

Corned Beef – This is the perfect way to enjoy leftover corned beef. If you don’t have leftovers, ask the deli to thickly slice corned beef for you.

Bread – Rye bread gives this casserole its classic sandwich flavor. Use pumpernickel or another hearty bread. Add a dash or two of caraway seeds for that classic rye bread flavor.

Sauerkraut – Sauerkraut adds a tangy flavor to this casserole. Be sure to drain the sauerkraut; otherwise, the casserole will become soggy.

Cheese – Swiss cheese is our favorite in this recipe, but you can use provolone, Monterey Jack, or any tangy cheese that’s extra gooey when it melts!

How to Make a Reuben Casserole

  1. Whisk the butter sauce ingredients per recipe below and toss with the bread cubes.
  2. Place half of the bread in a baking dish and top with corned beef, sauerkraut, and cheese. Repeat the layers ending with cheese.
  3. Bake until golden and bubbly.
  4. Drizzle with Thousand Island dressing and chopped pickles before serving.
taking a slice of Reuben Casserole out of the dish

Leftoverss

  • Store leftovers in the fridge for up to 4 days. Reheat in the microwave or air fryer.

More Corned Beef Faves

Did your family love this Reuben Casserole? Leave us a rating and a comment below!

plated slice of Reuben Casserole
5 from 48 votes↑ Click stars to rate now!
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Reuben Casserole

This dish has all the flavors of a classic Reuben sandwich, baked into a cheesy casserole!
Prep Time 20 minutes
Cook Time 55 minutes
Total Time 1 hour 15 minutes
Servings 6
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Ingredients  

  • 8 to 10 slices rye bread cut into 1-inch cubes, about 9 cups
  • cup melted butter
  • 2 teaspoons Dijon mustard or grainy mustard
  • 1 teaspoon Worcestershire sauce
  • ½ teaspoon garlic powder
  • ¼ teaspoon caraway seeds optional
  • 8 ounces leftover corned beef diced, about 2 cups, or thick sliced from the deli, divided
  • 1 cup drained sauerkraut divided
  • 2 cups Swiss cheese shredded, divided

For Serving

  • ½ cup thousand island dressing
  • ½ cup pickles chopped

Instructions 

  • Preheat the oven to 375℉. Grease a 9×13-inch casserole dish.
  • In a small bowl, whisk butter, Dijon mustard, Worcestershire sauce, garlic powder, and caraway seeds if using.
  • In a large bowl, drizzle the butter mixture over the bread cubes, tossing to combine.
  • Place half of the bread cubes in the prepared dish. Top with half of the corned beef, half of the sauerkraut, and half of the cheese. Repeat the layers, ending with cheese.
  • Cover the casserole and bake for 25 minutes. Uncover and bake for an additional 15 minutes or until browned.
  • Drizzle with thousand island and top with chopped pickles.

Notes

Leftover casserole can be covered and stored in the fridge for up to 4 days. Reheat in the oven or in the microwave until heated through. 
5 from 48 votes

Nutrition Information

Calories: 505 | Carbohydrates: 26g | Protein: 20g | Fat: 36g | Saturated Fat: 16g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 10g | Trans Fat: 0.4g | Cholesterol: 86mg | Sodium: 1350mg | Potassium: 302mg | Fiber: 4g | Sugar: 6g | Vitamin A: 689IU | Vitamin C: 14mg | Calcium: 377mg | Iron: 3mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Course Beef, Casserole, Dinner
Cuisine American, Irish
slice of Reuben Casserole with a title
Reuben Casserole with pickles and writing
Reuben Casserole in the dish with writing
Reuben Casserole in the dish and plated with a title

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About the author

Holly is a wine and cheese lover, recipe creator, shopping enthusiast and self appointed foodie. Her greatest passion is creating in the kitchen and making deliciously comforting recipes for the everyday home cook!
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Comments

  1. Hello. Im learning how to cook n I like some of your recipes. What kind of pickles should I use for this??5 stars

  2. Perfect for my leftover St Patty’s day dinner. It was a delicious winner!! I only made 1 adjustment. Being as I knew there would be a lot of leftovers, I did not put the dressing or the pickles on the casserole. We put it on each served portion, so when we heated up the leftover portions, there wouldn’t be warm dressing and pickles on it. So yummy!!5 stars

  3. Just made the Ruben Casserole. Nothing but, “raves of goodness” from the home crowd. Thank you. Edna W.

    1. Hi Terry, for this recipe we chop the rye bread into cubes and use them as is in step 3. It’s not necessary to dry them before using.