The masjid is open
Halal guys is close by Masjid
Yes there are a couple of restaurants & groceries next to it... They also sometimes sell food themselves.
Assalamu Alaikum wa rahmatullah wa barakatuhu The entrance to the Masjid is around the side if you are walking as the car park gates may be closed or seem outside prayer times. I am not best placed to definitely answer your other question. There is a couple of places to eat pretty close to the Masjid, there's also some driveable distance or using a taxi. Halal guys in the midtown area, if I remember it correctly from when I visited
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