That\'s a cute chihuahua Vivi!
Well, my favourite fast-food restaurant is either Pedrinos or then Hesburger
Pedrinos is a mexican-food place, and there they serve you the best taco\'s you\'ve ever got ( or at least best I\'ve got ), and so big hamburgers one can make you full.
Hesburger is a hamburger-place a la McDonalds, and not such a good place, but I don\'t have experiences on many different fast-food places so those two are my favs...