Oh, we never fried the pb and banana "sammiches".
We did have a concoction called pb&j toasties. Basicaly a grilled cheese sandwhich with pb& j instead of the usual Velveta.
I was raised on those tomato sandwhiches. My mother did it with two slices of white bread, miracle whip spread on one and margarine on the other add in vidalia onions and tomatoes with salt and pepper.
Peanutbutter and banana...
Here in town we have two guys who travel to the clubs/bars with burritos, salads, sammiches, etc with portable "carts". They call themselves Hot Panda and I think they do relatively well.