Yes, at the Bennett Library, you can eat food such as sandwiches, chocolate bars, or fruit in the group study rooms and large study room on Floor 2. You can have drinks anywhere in the Library provided they are in spill-proof containers.
Snacks and drinks (in covered containers) are permitted in the Surrey and the Belzberg Libraries. Food is not allowed near the computers.
Be sure to check the SFU Library Food and Drink Policy for updates and exceptions -- and for more information.