Can you cook?
If so, skip the silly amateur night and make this for her:
Steak Diane
You can use beef stock instead of making the veal stock and I've found the meat cooking time needs to be greatly increased if you don't want something bloody (I love medium rare and the first time I made it to the recipe times, it was blue.)
I really can't imagine ever going out to a restaurant on Valentines Day. I've never had a good experience no matter how much I spent. Too crowded, bad attention from servers and the experience never lives up to the hype.