^
On a serious note, no, I would not say The Keg is a higher end restaurant, just a pricey one. There's a difference.
You're better off taking her to a tapas bar to see how she handles sharing. Or to some smaller niche place like Les Faux Bourgeoisie. If she's into food, take her to Grub. For me even, even for a normal dinner with friends, I do my damnedest to try to stay away from chains. I'm sure as hell not going to take a date there.