Do you have a meeting that recurs, but not on a regular schedule? Rather than copying and pasting the attendees and meeting notice content over and over, try using an Outlook 2010 Quick Step.
From the Quick Step group on the Home tab, click the Create New button. If you don’t see it, click on the More button on the right of the gallery. In the Choose an Actions field, choose New Meeting. Complete the To: with your usual attendees. Reveal more fields by clicking on the Show Options button. Here you may complete the rest of the fields needed to complete your meeting item.