ts.ts

@Component({
  selector: 'some-component',
  template: `
    <p-dropDown [options]="users">
      <ng-template let-user> //now we have a local 'user' variable with each user's data
        <img [src]="user.avatar" />
        <span> {{ user.label }} </span>
      </ng-template>
    </p-dropDown> 
  `
})
class SomeComponent {
  users: SelectItem[] = [
    {value: 1, label: 'Armen Vardanyan', avatar: 'link-to-image.jpg'}, 
    {value: 2, label: 'Also Armen Vardanyan', avatar: 'link-to-image.jpg'}
  ];
  /* 
     We can add an avatar to
     SelectItem interface 
   */
}