What are my options when I cut my hole in the drywall bigger than I should have for my outlet cover?

I ran some HDMI cables through my wall to my TV over the fireplace. I made the hole slightly bigger than I should have and so the outlet cover anchors won't hold it flush against the wall.

What are my best options to fix this?

Submitted January 31, 2015 at 08:34PM by rusty__shakleford http://ift.tt/1CXiRzT