Of course It's a Nigella recipe, i love her food!
Here is the link:

MEXICAN LASAGNE | Recipes | Nigella Lawson

It is sooo lovely! Although a BIG word of warning, unless you like very hot (spicy) food, only put in 1 green chilli without the seeds. The recipe calls for 2 green chillis chopped, with the seeds included.
The first time i made it, i followed the recipe and added 2....OMG, i nearly blew my mouth off! It was waaaay too hot for me!

Even when i was really ill with my ED, it was the 1 meal that i would eat. Strange really, as it has cheese in it, and i wouldnt eat cheese (or tortillas, or sweetcorn) back then, but i would always eat this

If you want something nice to serve as a side dish, i recommend Avacado salsa.

1 avacado, chopped
1 spring onion, chopped
A few tbsp of lime juice
some dried (or fresh) coriander.
mix all together and voila!