function wpb_create_my_pages($blog_id, $user_id){
  switch_to_blog($blog_id);

// create new page
  $page_id = wp_insert_post(array(
    'post_title'     => 'PAGE TITLE',
    'post_name'      => 'PAGE-NAME',
    'post_content'   => 'CONTENT OF THE PAGE.',
    'post_status'    => 'publish',
    'post_author'    => $user_id, // or "1" (super-admin?)
    'post_type'      => 'page',
    'menu_order'     => 1,
    'comment_status' => 'closed',
    'ping_status'    => 'closed',
 ));

// Find and delete the WP default Sample Page

$defaultPage = get_page_by_title( 'Sample Page' );
wp_delete_post( $defaultPage->ID );

  restore_current_blog();
}