With many students having returned to school or are about to do so in the coming weeks, if you will be packing them a lunch, here is some simple but important advice from nutritional experts at Kaiser Permanente.When packing a school lunch, parents should aim for a balanced meal and provide different options, said Roohe Ahmed, a dietitian and health educator with Kaiser Permanente Southern California.“Whether the child eats it or not is another story,” she noted. “But the role of the parent is to provide a healthy meal.”According to Ahmed, who practices in Fontana, when packing a healthy school lunch, parents need to ensure it includes a variety of nutritious and healthy food.She recommended including proteins such as hard-boiled eggs, cottage cheese, Greek yogurt,