Have you looked at our Character Meal photo and information thread? Perhaps the photos will give you an idea of which other meal you would like to try. Here is the link:
http://www.disboards.com/showthread.php?t=2234435
Okay, I am thinking that Minnie and Friends might be for you. You have tried Goofy's already, so keep in mind that none of the other meals will have that same variety or selection of food. Goofy's has the most food. But I suspect that is not the most important factor here.
Minnie & Friends has the most characters (as you will see in the photo thread), and it is located inside DL.
Otherwise, your only options are
Storytellers Critter Breakfast in the GCH, which features about 4 or 5 woodsy/jungly Disney characters for breakfast only, and you have the choice of menu orders or the buffet (which is small). There is a new
Surf's Up with Mickey meal at the PPH, and no one has really posted too many photos of that yet, but supposedly Daisy Duck and/or Minnie can be found there. Also, Pluto and Goofy alternate, I think, and Stitch appears there. Mickey holds court at the entrance for photo ops.
Check out the character meal photo/info thread and see what appeals to you!! I think Minnie and Friends might be the way to go!

(Also, it is substantially cheaper than Goofy's too, so that is a big plus!)