The resturaunts would definately be a delicious... mouth-watering... delectable idea (I really need to get some lunch). But they're only good for a certain size of person (ie: Humans) what about our minifig bretheren?
LEGO churches are an excellent idea, because it allows our small, yellow, plastic friends to hear the good word, and enjoy some fine (also plastic) cusine.
If I had a strainer
I'd Strain in the Mornin'
I'd Strain in the Evenin'
All over this wooooooorld