My girlfriend, who doesn't cook at all, thinks there is such a thing as a salad chopper. She says that she was at a restaurant and mistakenly received an unchopped salad, after she had ordered a chopped salad. "Someone" came over and "whiz bang" did something to the pile of lettuce in the bowl with a gizmo--and she had a chopped salad.
I've thought of a mezzaluna and other shorter mezzalunas. I cannot think of a gizmo which would chop the salad, primarily the lettuce, after it's already in the serving bowl.
Can you help?