Dinner for Two, thanks to Earth Space Sciences

I got an email from my EAS (Earth/Atmospheric Sciences) professor today congratulating me on getting a 100% on my latest exam. Considering I got a B- with the curve on the first one, I had studied extra hard and made sure that I understood this material way better than the first. These tests are tough and apparently no one does very well on them, even though they are worth 60% of our final grades. So a 100% is a big deal--big enough that it won me a dinner for two at a restaurant of my choosing! :) Hmm...where should I go? Suggestions, anyone?