Restaurants and takeaways use local rankings which is different to normal search listings, it uses NAP (Name Address Phone Number) and many other factors to determine where your business is located and the intended local audience. So, unless you sell the same food and serve the same area its generally a bad idea.
Google has wised up to people purchasing expired domain and unless the domain is absolutely relevant to your own then its advisable not to get involved as it would be considered a 'risk' or no improvement.
If you really want to improve your rankings do the right research... building links nowadays for local businesses is the least thing you should concern yourself with...
Also restaurants are easy to rank... simply serve the best food and the rest looks after itself because it starts a buzz locally, on forums, social media and so forth.