Calling menu in a certain way from page.tpl.php
You can use menu_tree_all_data function to get all nested menus. And then you can add your own html to display menus with your style

$menutree_produce = menu_tree_all_data('menu-produce');


And if you want to Active current menu on related page you can use menu_get_item and menu_set_item on that page 

$menu_item = menu_get_item(drupal_get_normal_path('produce/oranges'));
menu_set_item(NULL, $menu_item);