MySQL Left Join Select all rows

Question

Hi guys I have a query which is pulling data from database :

SELECT sandwich_table.id,
       `sandwich_name`,
       salad,
       COUNT(salad),
       salad_type.type,
       sandwich_type_table.type
FROM   `sandwich_table`
       LEFT JOIN urls
         ON sandwich_table.id = urls.sandwich_id
       LEFT JOIN salad_type
         ON urls.salad = salad_type.id
       LEFT JOIN sandwich_type_table
         ON `sandwich_table`.`sandwich_type` = sandwich_type_table.id
WHERE  `active` = 1
GROUP  BY sandwich_table.`id`,
          salad 

Some of the data in salad_type.id is not represented in the COUNT(), as some types have not been established in the url table for example:

salad_type.id : 1,3 and 4 are in the url table but not 2.

I would like create a query to show all types whether there is a value or not? as this query only pulls the salad_type.id when it is established in the url table.

AS requested the table structures:

 CREATE TABLE `salad_type`
(
    `id` int(50) unsigned NOT NULL auto_increment Primary Key,
    `type` varchar(255),
    `name` int(10) default NULL,
    `date` int(10) default NULL
);
CREATE TABLE `urls` 
    (
        id int NOT NULL PRIMARY KEY AUTO_INCREMENT,
        `url` varchar(255) UNIQUE,
        `sandwich_id` int,
        `salad` int,
        `date_added` int,
        `username` int
    )
CREATE TABLE `sandwich_table` 
    (
        id int NOT NULL PRIMARY KEY AUTO_INCREMENT,
        `sandwich_name` varchar(255) UNIQUE,
        `active` int,
        `sandwich_type` int,
        `username` int
    )