I get mine at the grocery (Safeway). They are really good and I use them for quick meals. One of my favorite is using it for a personal "pizza": spread on a couple of Tbls. of tomato sauce, some pepperoni and grated mozzarella and nuke for a minute or so. Yum!

I also use them when we are having taco night although I can't get them to get crisp in the oven. I have heard that you can ge lc taco shells "la tiara" brand, but I haven't seen them anywhere.