How to facilitate a strategic planning session for a volunteer committee

I'm the Chair of the Climate/Green Committee at church, and I recently facilitated a strategic planning session for next year. Here is the agenda I prepared for it:

The session went well. Over the course of not quite 2 hours, a group of 7 people generated 60 ideas (some duplicate ideas). We grouped them into common categories and voted on the best ideas. Each participant got 5 voting stickers, and we voted on the best ideas, a total of 16 ideas received votes, but only 2 ideas received 5 votes or more, so we're going to start working on those ideas first.