Grate the horseradish cheddar into the cream cheese and stir until combined.
Chop the roast beef and stir into cream cheese mixture.
Spread over tortillas and tightly roll. Wrap with plastic wrap and refrigerate for at least an hour but up to a day.
Slice into rolls about 1/4-1/2 inch wide.
Serve and enjoy!
Notes
I like to use horseradish cheddar in this recipe when I can find it. It adds a little bit of spice that goes well with the roast beef. You can use your favorite cheese. You can even add a little bit of prepared horseradish if you would like.