This is actually quite a laugh and went down quite well with my classes!
It gave the rowdy ones time to shine and I just let the quiet ones just help with the scripts.
Depending on the class I'd either emphasize a really long menu or id skip the menu making and just make them perform,
I also showed them clips from faulty towers to get their funny bones in gear! I got some very funny sketches out of some of the groups (I usually put them into groups of six) and participation was obligatory in the writing stages but optional on stage but three from every group had to perform! (if the class was shy I asked them to make a really really gross menu, they werent so shy after that)

I let them use dictionaries to avoid the “teacher! spelling spaghetti!!” syndrome that seems to take a hold of them!

i ran through the slides quickly to give the weaker students some ideas....
But if you are going to use this i definatley advise changing it to your own style..