These roast beef and cheddar sandwiches are hearty and satisfying, with tender roast beef, melted cheddar cheese, and a tangy horseradish mayo. They’re perfect for lunch or dinner.
In a small bowl, whisk together the mayonnaise, horseradish, Dijon mustard, salt, and pepper to make the horseradish mayo.
Preheat a large skillet or griddle over medium heat.
Spread a generous amount of the horseradish mayo on one side of each slice of bread.
Top 4 slices of bread with a few slices of roast beef and a slice of cheddar cheese.
Top each sandwich with another slice of bread, mayo side down.
Spread a thin layer of butter on the top of each sandwich.
Place the sandwiches, butter side down, onto the skillet or griddle. Cook until the bread is golden brown and the cheese is melted, about 3-4 minutes.
Spread another thin layer of butter on the top of each sandwich and flip them over. Cook until the other side is golden brown, about 2-3 minutes.
Remove the sandwiches from the skillet or griddle and let them cool for a minute or two before slicing them in half.
Serve the sandwiches immediately.
These roast beef and cheddar sandwiches are hearty and satisfying, with tender roast beef, melted cheddar cheese, and a tangy horseradish mayo. They’re perfect for lunch or dinner.