The easiest way would be to make use of the GROUP_CONCAT group function here..
select
ordered_item.id as `Id`,
ordered_item.Item_Name as `ItemName`,
GROUP_CONCAT(Ordered_Options.Value) as `Options`
from
ordered_item,
ordered_options
where
ordered_item.id=ordered_options.ordered_item_id
group by
ordered_item.id
Which would output:
Id ItemName Options
1 Pizza Pepperoni,Extra Cheese
2 Stromboli Extra Cheese
That way you can have as many options as you want without having to modify your query.
Ah, if you see your results getting cropped, you can increase the size limit of GROUP_CONCAT like this:
SET SESSION group_concat_max_len = 8192;