Dinner · Part 2 of 3: Instructions
Easy Reuben Casserole with Melted Cheese Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 6
Before you start
Before beginning the assembly, ensure the oven is preheated to 375°F (190°C) to guarantee consistent baking. Have all ingredients measured and ready, especially the corned beef, which should be diced into uniform pieces.
If using store-bought corned beef, check that it is free of excess fat, and drain the sauerkraut thoroughly. Preparing these items ahead of time streamlines the process, allowing for a smooth transition from mixing the base to placing the casserole into the oven without delay.
Ingredients at a glance (5)
- 1 lb cooked corned beef, diced
- 16 oz sauerkraut, drained
- 2 cups shredded Swiss cheese
- 1/2 cup Thousand Island dressing
- 1/4 cup diced pickles
Instructions
Base assembly
- Prepare the basePreheat the oven to 375°F (190°C). In a large mixing bowl, combine the diced cooked corned beef and the drained sauerkraut. Mix well until the ingredients are evenly distributed, then transfer the mixture into a 9x13 inch baking dish, spreading it out into an even layer.Look for The mixture should be spread evenly across the bottom of the baking dish without any large clumps.Tip Ensure the sauerkraut is thoroughly drained to prevent the casserole from becoming watery during the baking process.
The base is ready when the corned beef and sauerkraut are thoroughly combined and spread into a uniform layer in the baking dish. The mixture should appear moist but not overly wet, with the ingredients evenly distributed to ensure consistent flavor in every serving. Check that the dish is clean and ready for the cheese layer.
Baking phase
- Add cheese and bakeSprinkle the shredded Swiss cheese generously over the top of the corned beef and sauerkraut mixture. Place the dish in the preheated oven and bake for 20 to 25 minutes, or until the cheese is bubbling, melted, and golden brown on top.Look for Watch for the cheese to become fully melted and start bubbling at the edges of the dish.Tip If the cheese is not browning enough towards the end of the baking time, briefly turn on the broiler for one minute.
During the baking phase, the casserole should smell savory and slightly tangy as the sauerkraut warms. The cheese will transform from shredded pieces into a smooth, melted blanket. By the end of this phase, the top should be bubbling vigorously, indicating that the heat has penetrated through to the center of the dish.
Finishing touches
- Garnish and serveRemove the casserole from the oven and let it rest for 5 minutes. Drizzle the Thousand Island dressing evenly over the hot cheese, then scatter the diced pickles over the top. Serve warm while the cheese is still stretchy and the dressing is flavorful.Look for The dressing should create a nice contrast against the hot, melted cheese layer.Tip Add the dressing and pickles just before serving to maintain the best texture for the toppings.
The final phase involves adding the cold toppings, which should be done immediately after removing the dish from the oven.
The dressing should be drizzled evenly to create a visually appealing contrast, and the pickles should be scattered to provide a final burst of acidity. The dish is ready when the toppings are arranged and the casserole has rested.
Common mistakes
A common mistake is failing to drain the sauerkraut adequately, which can result in a watery casserole that does not set properly. Another error is over-browning the cheese; keep a close eye on the oven during the final minutes to prevent the cheese from becoming too dark or rubbery.
Additionally, ensure the corned beef is cut into bite-sized pieces to ensure the casserole is easy to serve and eat, avoiding large, tough chunks.
How to tell it’s done
The casserole is done when the cheese is completely melted, bubbling, and shows light golden brown spots on the surface. Because the corned beef is already cooked, the goal is to heat the ingredients through and achieve the desired texture on the cheese topping.
The center should be hot to the touch, and the edges of the casserole should show bubbling juices from the sauerkraut and dressing elements.
Up next · Part 3 of 3
2 variations · storage & make-ahead · 3 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)