Get a user's user settings and parse them into an array. Dumps into the admin footer in the Dashboard.

user-settings.php

<?php
function get_a_users_settings() {
	// Change 1 to the user's ID
	// Or do $user = wp_get_current_user() and change $user_id in get_user_option to $user->ID
	$user_id = 1;
	$option = get_user_option( 'user-settings', $user_id );
	if ( $option && is_string( $option ) ) {
		parse_str( $option, $array );
		echo '<pre>';
		var_dump( $array );
		echo '</pre>';
	}
}
add_action( 'admin_footer', 'get_a_users_settings' );