When Meesha Chang makes a bento box lunch for her 2 ½-year-old daughter, Lucia, it isn’t child’s play. Every weeknight, Chang stays up until 11 p.m. rolling tiny rice balls flavored with butter, soy sauce and sesame seeds to appeal to her picky eater. She pokes decorative toothpicks into homemade mini meatballs or dumplings and...
