Preheat the oven to 350℉. Spray a 9x13 baking dish with non-stick cooking spray.
Spread the Thousand Island dressing on the inside of the slider rolls (top and bottom). Place the bottom half of the rolls in the prepared dish.
12 slider rolls, ½ cup Thousand Island dressing
Top with half of the cheese, followed by the corned beef, sauerkraut, and the remaining cheese. Place the top half of the rolls, dressing side down, on the sandwiches.
½ pound deli swiss cheese, 1 pound deli corned beef, 4 ounces sauerkraut
Melt the butter in a small saucepan. Meanwhile, combine the spice blend ingredients in a small bowl.
Add 1 ½ teaspoons of the spice blend to the melted butter (reserve the extra spice mixture for other uses). Stir to combine.
Brush the top of the sliders with the butter mixture. Cover with foil and bake for 30 minutes. Remove the foil and bake for another 5 minutes. Serve while warm.
Notes
Be sure to drain the sauerkraut thoroughly to avoid soggy sliders.
To reheat, cover the casserole dish with foil and place it in a 350°F oven. For individual portions, wrap the sliders in a paper towel and heat them in the microwave for 30-45 seconds.