there used to be one nice Nigerian restaurant at New Westminster, suburb of Vancouver called ZOWABIA, but it closed down due to some renovations, there's one that just opened up though, its called Lagos Village, or Lagos Palace. . . something with Lagos in it.
You can contact the Nigeria-Canada development association,
www.ncda.bc.ca they should be able to link you up with the restaurant. I had some of their food on independence day and it was off the chain.