This low carb 4-ingredient Reuben casserole is the kind of cheesy, savory bake that disappears before you’ve even put the pan down. It has all the flavors of a classic Midwestern Reuben sandwich—corned beef, sauerkraut, Swiss, and that creamy, tangy dressing—just without the bread. It reminds me of church potlucks where the Reuben dip was always scraped clean, only this version is hearty enough for supper and simple enough to throw together on a weeknight. With just four ingredients and a hands-off bake, it’s the sort of dish that has coworkers asking for seconds and families hovering by the oven, waiting for those golden-brown cheese bubbles to appear.
Serve this casserole piping hot, scooped into bowls or into meal-prep containers. For a low-carb plate, pair it with a simple green salad—leaf lettuce, cucumber, and a mild vinaigrette help balance the richness. Steamed green beans or roasted broccoli also sit nicely alongside. If you’re cooking for folks who aren’t counting carbs, set out a basket of rye crisps or toasted low-carb bread so they can scoop or stack the casserole on top. A cold dill pickle spear and a little extra dressing on the side bring the full Reuben experience to the table.
