I call this version of a roast beef sandwich an RBC Roll because when you cut it into small pieces, it resembles a sushi roll — which makes it a great option for lunch, snacking, or serving as an hors d’oeuvre. The cucumber is intended to resemble a wedge of cucumber you’d see in a sushi roll. To cut it, just trim the ends, then cut it in half lengthwise. Cut those halves in half again. If the cucumber was thick, halve them one more time. Reserve any leftovers for munching or for another recipe.
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