Suggest Ways To Manage Mealtime Tantrums By Child

My granddaughter does not like to eat vegetable, any kind of meat, or certain fruits, I don t know what to do, her mother is trying to give her new foods every day but she cries y she tells me that know she is getting scared at meal time, my grand child is telling me that she doesn t want to be like that but she can help it she is only 8 years old she s being this way since she was one year old. She eats only chesse pizza, macaroni and chesse, white rice, cereal, eggs, pancakes, quesadillas, . Please help me to help her.