Did up the Pumpkin Pie last week. One pack I did and took to work, the other I shared with the other people at home.
As expected with a packet mix, it didn't take much time and effort. Just some butter, eggs and water between the two pouches (base and filling)....
http://www.toycollectors.com.au/blog/a820.jpg
The result was a very usual taste and texture.
The base is like gingerbread, while the filling has the texture of roasted pumpkin, and a subtle taste of pumpkin as well... with lots of spices.
It ended up tasting a lot like the M&Ms - the spices bit of the M&Ms.
http://www.toycollectors.com.au/blog/a821.jpg
I'll still try to find it in America though, as a fresh pie... but for now, I'm satisfied at knowing what this uniquely American dish is all about.