public class MenuObj {
    String id = "";
    String name = "";
    String description = "";
    String fixedPrice = "0.00";
    ArrayList<IngredientObj> children = new ArrayList<IngredientObj>();
}


public class IngredientObj {
    String id = "";
    String name = "";
    String description = "";
}


// in RestClass
    private void getMenuData(String result) {
        Log.e(TAG, "getMenuData NEW");
        System.out.println(result);
        ObjectMapper mapper = new ObjectMapper();
        try {
            MenuObj[] menuList = mapper.readValue(result, MenuObj[].class);
            for(MenuObj menu : menuList){
                System.out.println("menu.id: "+menu.id);
                for(IngredientObj ingr : menu.children){
                    System.out.println("Ingredient: "+ingr.toString());
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

    }