I first proposed spaghetti tacos in early 2002, as a way to simultaneously utilize leftover pasta and deplete an intimidatingly tall stack of fresh corn tortillas. The reply I got was, "I like fusion cuisine, but that is too fused." I didn't make them.
Now I'm softly vindicated in the NYT, via delayed release from Nickelodeon. These spaghetti tacos use the gringo-style hard shells. I pretty much never endorse those, but in this case I'll grant approval because their crunch provides an effective contrast to the pasta's texture. /mark