Chipotle - a good place for students. For about $10 you have yourself a light lunch and dinner altogether (I can't finish their burrito all at once, its very filling).
Their staff is like WestJet staff -- they are happy to be there, happy to serve you. Their preparation process is like a mix of starbucks, and an automobile assembly line.
The design is clean and modern - stainless steel and wood.
Usually there is a 5-10 min waiting line during lunch.
So avoid that time.
I prefer mexican cuisine which is made by mexicans and served by mexicans, not western type - which is made in McDonalds fashion.
Mexican food has to be tasty, greasy and with lots of cheese. period.