One of my favorite places to go when I eat out, partially because it's close to home but mostly because it's good. There's a buffet-style set-up. You simply pay the cashier, grab a bowl and load it up. There's a good assortment of meats and vegetables with a number of different sauces you can mix and match. Experimentation is key so repeat visits will allow you to find your preferred mix. After that, simply give your bowl to the cooks who will prepare it for you and you're ready to go.
It's a very self-serve kind of place, which I like. Everything's provided for you so waiters are unnecessary. Drinks, sides (like rice or soup), condiments and an ice cream machine are all there for you. When you're done, just leave your tray at the table and they'll pick it up.
They aren't trying to wow you with atmosphere or decor and what little service you need is perfunctory. Personally, I like the no-frills, self-serve set-up of the place... you're not there for an "authentic Mongolian experience" you're there for a good bowl of food with (hopefully) some friends. If you're going to Metrocenter for a bite to eat, this is the place