Cravings is one of the best cheap authentic Chinese restaurant on campus.
Their location, price, and portions are unbeatable in all of CU.
My favorite dishes are:
-Pork belly with preserved veggie
-Fish with Shanghainese bokchoy
-Fish Marsala
-Mapo Tofu
-Jakarta fried rice
-Chicken and veggie (or chicken lo mein)
-Crispy chicken/beef
The one thing I don't like is the smell inside so I usually get take out and it's always crowded so it's good to call ahead and pay with cash when you get there for that discount. However, make sure you pay the meter because I went in to pick up take out and when I got out there was a ticket :(
The only other comparable place is Golden Wok but it's a bit far on University so you'll need a car to get there (they have free parking)