Where can I find Jumbo couscous in Toronto?
You may be thinking of Lebanese couscous (aka Moghrobieh). You may be able to find it at Middle Eastern stores, e.g. Arz on Lawrence. Call first, although a trip there is never a waste of time.
Fregola looks similar to Israeli couscous but is around the same size, not sure if that's what you may have had.
1909 Lawrence Ave E, Toronto, ON M1R, CA