Kalustyan's
123 Lexington Av.
+1 212 685-3451
M-Sa 10AM-8PM, Su/Holiday 11AM-7PM
Probably the most complete source for Eastern Mediterranean, Middle Eastern, and South Asian foodstuffs in Manhattan, though some of the spices and such cost more than you'd pay at the smaller Dual in the East Village. While you're there, make sure to go upstairs and get some mujadara. Some of the other prepared products are just OK, but the mujadara is great. Eat in or take out.