So you have made a delicious fancy holiday meal and you have left over roast beef – what do you do with it? Make roast beef sandwiches of course!
Slice that beef up really thinly, which is easier to do once it has been in the fridge overnight.
Throw it on the griddle with some butter and let it get nice and crispy on the edges. Pile it up on some fluffy toasted buns with some horseradish sauce and you are good to go!