Steps
1. Preheat your oven to 350°F (175°C).
2. Slice the slider buns in half and place them on a baking sheet.
3. Spread mayonnaise on the bottom half of each bun, followed by a layer of horseradish sauce.
4. Layer on the roast beef slices and top with a slice of cheddar cheese.
5. Add a leaf of lettuce and sprinkle with salt and pepper.
6. Place the top half of the buns on and lightly press down.
7. Bake in the preheated oven for about 10 minutes or until the cheese is melted and the buns are toasted.
8. Remove from the oven, slice in half if desired, and serve warm.