gst rate and bills

I wants to known that what is gst rate if resturants bills inculdes foods with chips and cold drink as well as mineral water bottles. Such as

Sahi paneer (2*120) = 240
Dal fry (2*80) = 160
Missi Roti (4*15) = 60
Tawa Roti (5*8) = 40
Water Bottle (1*20) = 20
Pepsi Bottle (1*80) = 80
Chips (1*25) = 25

Total amount witout Gst = 625

What is gst rate if service provider registered in regular dealer.

And Is GST rate applicable on total amount @ 5%
Or
Separate Gst rate apply on each items such as Water, cold drinks & chips and other food items

Please answer me with details information.......