Instead of writing your own implementation of the distance formula without tests (which is error prone), use an existing library from npm. https://github.com/manuelbieh/geolib looks to be a good one
Instead of embedding the data about the location in the name, add properties to the JSON that is returned and let the frontend format the data into the name. That way the data can be used for other things too (like showing the locations on a map) without having to extract the data from the name
Added address and distance to restaurant output.