My query is on a book I read in the mid 1960’s, however I don’t know when it was published.  It was a child’s book about a young student (I  believe a girl)  whose parents worked in a restaurant.  Because of that, she “had” to bring lovely, delicious restaurant leftovers for her school lunches.  I vividly remember the descriptions of her covering her desk with a checked cloth, and taking out all this elegant, gourmet food.  The twist was that she was ashamed of her lunches, for being different.  I hope you can help!