CakePHP Relationship Question

I am trying to configure CakePHP to act as a REST API for an app i'm writing.

I have 3 tables:

dishes {
 id,
 name,
 description
}

users {
 id,
 name,
 email
}

dishes_users {
 id,
 user_id,
 dish_id
}

I would like it so that when someone visits /users/1.xml, the data that gets returns is just the list of 'dishes' that a user has in the 'dishes_users' table, i dont want anything from users or dishes_users to be in there, just the id, name, and description of the dishes table.

in the end the xml structure has to be:


 
 

This is currently the relationship i am using in the users model:

var $hasAndBelongsToMany = array(
    "Dish" => array(
        'className' => 'Dish',
        'joinTable' => 'dishes_users',
        'foreignKey' => 'user_id',
        'associationForeignKey' => 'dish_id',
        'unique'                 => true,
        'conditions'             => '',
        'fields'                 => '',
        'order'                  => '',
        'limit'                  => '',
        'offset'                 => '',
        'finderQuery'            => '',
        'deleteQuery'            => '',
        'insertQuery'            => ''
));

In the controller i have:

function view($id) {
    $dishes = $this->User->findAllById($id);
    $this->set(compact('beers'));
}

This gives me what i want, but it also gives me a lot of stuff i don't want. All i need is the list of dishes.

Thanks for any help, this has been driving me nuts.