That's a hilarious question! To answer very simply, it varies :).
I worked at a Thai restaurant for a month or so and every night I worked, I got free thai food :) They would cook stuff like liver (I accidentally ate it lol, it looked so much like beef I forgot to ask, and I HATE liver!!), green beans, fish, etc. Sometimes, they would buy like a rotissiere (sp) chicken and we'd just peel the chicken and eat it with rice. It depends on the cook, really :)!
I also worked at a Chinese restaurant for like four years, and my boss usually makes me some Chinese food, like Mapo Tofu (Spicy Beancurd), Braised Chicken, and then sometimes she'd make me Americanized chinese food, like Pepper Steak and Chicken Fried Rice. :) Whatever it was, it was YUMMY! I love my boss lol. I wanna go eat some Chicken Fried Rice or Shrimp Lo Mein now! LOL.