Udipi Cafe is popular among people who visiting the Indian temple in Pittsburgh. I have been here a few times and it always makes me feel as if I'm in an authentic South Indian restaurant in Bangalore.
They are usually crowded on weekends so the service can be slow at times but the food makes up for the service. You cannot go wrong with anything you order here.
Our usually menu consists of a vegetarian sampler that has an idli, a medu vada, a vegetable cutlet, a samosa, a couple of onion rings and a couple of mirchi bajjis. I don't remember a time when we were here and we did not order the sampler. It comes with a whole bunch of chutneys and a bowl of sambar.
Next comes the main course which usually comprises of choley bhatoore or fried rice or any paneer dish. The portions are pretty big so you might need to take some of the food home with you.
The filter coffee is something you won't get everywhere in the US and is a must have.
I know I'll come here many more times