my child is 5 years old but her weight and height are not upto the expected level .she is under weight.what should I include in her diet for weight gain and also for increasing height

A. dear mum , for optimum growth give a balanced diet variety of food groups 3 meals 2 snacks include a protein source in every meal - legumes dal beans sprouts / egg non veg , milk curd paneer , nuts oilseeds outdoor play