It don't really matter she already willing to go out with you .Just take her to someplace simple ,inexpensive and a place where you can talk to her and get to know her.
But honestly my best "dates" where active dates ,like taking a girl skate boarding (I'm 6'1 185 ,and Dominican/Black from NJ so i don't have to tell you how weird i looked even though like half of them guys where hispanic,black and Hawaiin) or to one of my pick up games of basketball ,or offering to cook food for her..You know not dates just spur of the moment stuff that you would do with your freinds.
THA REALNESS THINKING OUTSIDE THE BOX FOR YOUR BENEFIT.