ROASTED BEEF SANDWICHES WITH WATERCRESS AND HORSERADISH MAYONNAISE
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leftover roasted beef tenderloin, sliced thin
mayonnaise blended with hot horseradish, either prepared or fresh
watercress, washed and spun dry
soft rolls, toasted
Spread both halves of the toasted rolls with horseradish mayonnaise. Pile with thinly sliced beef and top with the watercress.
from Fine Cooking Magazine, issue 114