If you haven't dined at Two Hahn's before, you definitely need to give it a shot. It's a great place for a casual meal that gets you involved in preparing your dinner!
First choose a bowl full of goodies from the buffet including beef, chicken, turkey, fish, shrimp, even calamari and tofu, plus noodles and veggies. Then you get to make your sauce as well. Choose from one of the many recipes on the wall (from the masses-pleasing house sauce to the hot and spicy curry or szechuan sauces), or get creative and make up your own.
After filling your bowl, take it over to the Mongolian grill for one of the chefs to cook it up for you.
There's a small salad bar that's included in your meal, and if this all sounds too different for someone in your group they can order from the menu, so there's something for everyone.
There is a beer and wine list, as well as a full bar.
The food is good, but there are just a few drawbacks. Sometimes the service is iffy. Many of the people there are very nice, but sometimes we've gotten servers who seem a little spacy (luckily you only have to rely on them for drinks!). Another note is to suggest you go on a week night to avoid the buffet line that can back up when someone can't decide what they like.
My only real beef is the lack of ambiance. I'm aware this isn't a fancy place and is casual fare, but a little more effort would be nice. There are some fun murals depicting historical Mongolian themes, but with bad muzak and about 4 TVs on different channels it is impossible to have a relaxing dinner!!