Like I mentioned, that's what I'm looking for too. :( My research so far is either mini (like mine) or far too big for my purposes.
Another option would be an electric hot plate and a pan? (I'd probably use a disposable aluminum tray) Again, issue finding one just the right size.
Me mentioning George Foreman tho led me to seeing this, which might actually work. Dimensions are 9.4 x 5.1 x 10.2 inches and it's actually only a 1 lb heavier than mine. Note I have not delved into reviews tho.