This was a really successful lesson I used with my third graders on ordering in restaurants. We use the Thomas Orr book, and there was a whole section on this.
In the ppt, we went over basic restaurant vocab and stuff, and then I split the class into groups of 4 or 5 and then they made their own restaurants, including a name, logo and menu. (I've included the make-your-own-menu sheets here.)
We also did an activity splitting the class in half- waiters and customers. We had waiters at four different restaurants (menu sheets attached below) and the customers had to order from at least 2 different places. After we were done, the waiters told us what their classmates ordered.
On the ppt, I threw on some funny American restaurant ads, like the little Taco Bell Chihuahua and stuff- the kids really got a kick out of it.
Hope this is useful for someone!
FYI: The one titled Lesson10 is the long ppt. the first one is the make a menu template!