Ruby Room serves up what could be Ulaanbaatar's best burgers. The simple menu offers a choice of seven juicy, supersized burgers, all served with fries and three sauces. The Mexican burger is a good choice if you like spicy food, and there's a vegan/vegetarian option, too. The interior is clean, but a bit dark and sparsely furnished.
Funky art, including a painting of Bob Marley, hanging from red walls completes the scene. It's located behind a row of ugly metal shacks. You might have a hard time spotting it from the street, although there is a sign looming above the shacks.