If you walk to the front gate of HRH and turn left, this will take you to Vineland Rd. Turn right toward Kirkman Rd.
To your left on Kirkman is a McDonalds. Across Kirkman on Vineland is a Burger King and bit farther along a Wendys. Also on Kirkman, but on the other side of the street from the Universal property, you'll find a Ponderosa (I think), the orlando Ale House, and the Kobe Japanese Steak House.
All of these I consider within walking distance but some people probably wouldn't.
Hope this helps.=
Kelly Monaghan
Author of "Universal Orlando: The Ultimate Guide to the Ultimate Theme Park Adventure" and
"The Other Orlando: What To Do When You've Done Disney & Universal""