Gourmet Fast Food?

[silver book]

I just ate at Pei Wei tonight ( really good AZN food, they have them in AZ, dunno about anywhere else) and it go me thinking, how is "fast food" defined? There are a number of resturants like Pei Wei, Chipotle, and various sandwhich places which most people would consider to be fast food, but I don't feel like these places are comparable to McDonalds/BK/Wendys. The quality of food is much better, and its normal to wait at least 10 minutes for your food at a place like Pei Wei.

Should these kinds of places still be considered fast food? Or is Pei Wei a "sitdown resturant"? ( people bring your food out to you, but everyone orders at a counter) Or is it something else, gourmet fast food/a quick-sitdown resturant?

( also what is your favorite thing to get at these kind of places, please include those I haven't named)