01 -
Preheat oven to 350°F (175°C). In a large bowl, toss rye bread cubes with melted butter. Spread bread cubes evenly on a baking sheet. Bake for 8–10 minutes or until golden and lightly toasted. Remove and set aside.
02 -
In a large bowl, mix corned beef, sauerkraut, Swiss cheese, Thousand Island dressing, mayonnaise, Dijon mustard, and parsley. Ensure sauerkraut is well-squeezed to remove any excess moisture.
03 -
Grease a 9×13 inch baking dish lightly. Spread half of the toasted bread cubes at the bottom. Evenly layer the Reuben mixture over the top. Scatter the remaining bread cubes on top to cover the mixture.
04 -
Bake in the preheated oven for 30 minutes, or until bubbly and the top is golden brown. Let cool for 5–10 minutes before serving.