Split rolls and lay all of the bottom pieces in a casserole dish. Layer each slider bottom with 1 1/2 slices of corned beef, folded into a square.
Top corned beef layer with swiss cheese.
In a small mixing bowl, mix together 1/2 cup Thousand Island and the sauerkraut. Layer the mixture overtop of the cheese.
In a small bowl, mix together topping ingredients. Spread a thin layer on the underside of the top of each bun. Spread the remaining topping onto the top of each roll. Lay roll tops onto the sauerkraut layer.
Bake in the preheated oven for 12-15 minutes, or until tops are golden brown.
Notes
You can definitely switch these up if you’d like and sub the corned beef with pastrami or turkey.
I love to use sweet Hawaiian rolls for my sliders but you can sub for any slider roll you would like. If you could find rye buns, that would be delicious!
You make this almost like a layered casserole. Everything gets stacked together in a casserole dish and then you can cut them into squares for easy serving.