Not good for displaying your own feeds

I wanted a better to display the three most recent posts from a specific category feed in the sidebar of my site, and this seemed like a great fit. However, every feed item it showed began with something along the lines of “This article was first posted on [MyWebsiteName]” including repeating the article title. I wanted people to see an excerpt or a few lines they’d be interested in clicking, to draw attention to specific posts on my website, not a reminder that we authored the post. Tried all combinations of settings, and still got the same unwanted results.