I noticed these symbols were used on the sign over the Woolworths Metro, in George Street, Sydney.
Professor Ravi Poovaiah, Industrial design Centre, Indian Institute of Technology provides a very useful Design
of Signage Systems website. As well as an academic paper "Graphic Symbols for Environmental Signage: a Design Perspective", a set of free "Graphic Symbols for Public Signage System" are provided. This included a Building Symbols set with a symbol for Ice cream and one for snacks (showing a hamburger and a milkshake). High resolution EPS versions of the sybols are provided as well as 600 pixel JPEG versions (it would be better if PNG or GIF versions were used in place of JPEG).
There was no symbol for a fish and chips shop, but showing the Indian origins, there is a symbol for "Veg Cafeteria" (Vegetarian cafeteria), with a stylised representation of a Dosa, or flat bread platter, glass and spoon. The symbol for a "Non Veg Cafeteria" (Non-vegetarian cafeteria) shows a plate with a meat clever in the middle of it, with a knife, fork and glass alongside.