In a large mixing bowl, combine the cubed rye bread, chopped corned beef, drained sauerkraut, shredded Swiss cheese, and Thousand Island dressing. Mix well.
Transfer the mixture to a greased baking dish and spread it out evenly.
Bake in the preheated oven for 45 minutes, or until the top is golden brown and the casserole is heated through.
Let the casserole cool for a few minutes before serving. Enjoy!
Notes:
This Reuben Casserole is a great way to enjoy the flavors of a Reuben sandwich in a comforting, baked dish. Perfect for family dinners or potlucks.