I've been here several times over the last five years or so.
This is the Best vegetarian Chinese food in Monroeville, and among my favorites for best Chinese in the Pittsburgh Metro.
I recommend the Broccoli with Garlic Sauce, Mapo Tofu, Chow Fun Noodles (these are large flat noodles similar to Pad Thai). Fresh veggies, cooked just right.
Brown rice available for a modest $1 extra.