Performance artist Robert Karimi, in character as chef Mero Cocinero Karimi, makes a claim as big as a half-pound bacon cheeseburger: He can teach people to improve their diets without ever uttering such unappetizing words as healthy or nutritious. During a cooking demonstration at Reading Terminal Market on Tuesday, he proved his point by persuading two 11-year-olds, waffle cones in hand, to put a dollop of his radish-greens, mint, onion, and lime dip on top of their ice cream. Sometimes, success lasts only as long as ice cream on the tongue.
