When I first moved to the neighbourhood, I was at the Hasty Market every few days, due to the convenient location near my apartment. They have all the basics you could possibly need, as well as a Shawarma/Falafel station at the back of the restaurant (Flaming Stove). They also sell prepared meals, which I bought regularly for dinners and lunches while I was still unpacking my kitchen stuff.
Their prices are very reasonable for a convenience store and you can't beat the fact that they are open 24 hours.