You will find Koala on Oxford St and that is a good supermarket. Oxford St is the main street in Accra for bars and restaurants so I'm sure you will soon find a place to hang out.
Depends what you like - FeliciaÂ’s spot past the Cantoments police station is a nice local spot to get a cold Star or there is Venus up the road from the Total petrol station on Oxford - Lebanese food and cold Star...Or if you like posh and expensive there is of course the Pink BuildingÂ…