A huge cafeteria building 11 on grounds, with the capacity to serve 10,000, dishes out three simple vegetarian meals of rice, kimchi and soup daily. All meals are free and visitors are welcome, but food is only available at set times. Lunch service starts at 11:30 AM and ends at 1:30 PM; if you arrive late and find the main entrance on the right side closed, you can circle around to the left side and try your luck at the kitchen. Donations are welcome but not expected. Be aware that the meals are not of the most delicous sort but rather tasteless so you might consider bringing some snacks on your own. Instant noodles can be purchased from the shop at the bus terminal.
The other option at the temple itself is the restaurant on the second floor of the bus terminal building. Alternatively, walk downhill to the tourist village, where you can find a whole slew of restaurants.