Combine everything except the beef in a large bowl. If you're doing this at the table, a wooden salad bowl is best.
Slice the beef about a quarter-inch thick. Using a meat mallet, pound it until it becomes quite thin. Then chop it with a sharp French chef's knife on a wooden cutting board.
Put the beef into the bowl and, with two large forks, blend the seasoning ingredients with the beef. Check the seasonings, and add salt and pepper as needed. Form the beef into a fanciful pattern on the plate for a dramatic effect. Or not.