Wolfgang Puck Express in Marketplace does a decent, but pricey breakfast. It's one counter service credit if on the dining plan.
While technically walking-distance from SSR it can be quite a hike if you're in the buildings on the far side. I wouldn't make a special trip over there just for breakfast...a lot of extra walking on top of park walking...it's not that special. The boat to Downtown Disney from SSR dock does not go to Marketplace end, so that wouldn't cut out walking for you.