I do these each semester with my high school students. We do them in pizza pans. If 150 high school students can turn out 30 of these in a day (plus or minus, depending on the group following the recipe, or remembering to turn on thier oven, or measuring correctly, or not eating it all before they bake it, or just being complete nincompoops that we know high school students can be) They turn out really well. And are super easy, cost less than 3.00 to make, and they usually go to the mall and buy them for 25. They are a big hit among those not so easily impressesd. adn I love it when they go home and make them for thier family.
Sorry for that....my point was pizza pans are the way to go.