MissJenn, you can order pretty much anything you need for Mexican from the MexGrocer online, I think someone posted a link earlier. But don't worry, you will find lots of food to love in the UK, anyway! I make my own taco seasoning, enchilada sauce, and stuff like that. The Old El Paso corn tortillas are fine for enchiladas and things, and the taco shells are fine. There is enough to work with, really. But when you move, I would suggest bringing over a few ingredients with you that you really love or think may be hard to find here. If you want to know if anything is available, just take a look at the websites for Sainsburys, Asda, and Tesco and that should give you a pretty good indication.