I'm looking for a simple way to show a list of all sub-sites for a particular site. This could be via a web part page, some other page, a web part, a list, etc. Nothing fancy--just a simple list of sub-sites that users can click on to go into a particular sub-site. It could be exactly like the screen you see when you click 'Add Site Content', which shows sub-sites (but without showing the other site content--list sand libraries).
Again--this could be a slick, list-style web part or a quick and dirty 'show all site content' but only showing sub-sites.
Note that this is SharePoint 2013 Foundation, so QEWP isn't an option. Ideas?