The first time I bit into a pai tee, I thought taco! Same idea after all ~ crunchy shell with filling.
Pai Tees are much smaller though. And while the taco is a meal, the pai tee is an appetizer. Fillings are usually thinly sliced vegetable either raw or lightly fried. Well I haven't yet come across other kinds - perhaps if I went on a Pai Tee odyssey I might!
The best pai tee I had were ones in Penang and the place that served them was so quaint. A little house on a slope with cute furniture. Eating was alfresco in a patio in front of the house. There's even a swing under a tree on one side of the patio. I wanted to sit there, but one couple was already and (selfishly) remained there the entire time I was at the place!