Hello Kendall,
You have picked my family's must-do for each and every trip we make to Walt Disney World. I am of German heritage, and it has become quite the tradition in our family to dine at
Biergarten. So much so that my kids ask about it each time we plan a trip to make sure we aren't forgetting to plan a reservation there.
Other than a few more items on the buffet at dinner, there really isn't much difference in lunch and dinner. However, the dinner is more expensive. I have never noticed the entertainment to be any different between lunch and dinner. Keep in mind, though, that the entertainment doesn't start as early as reservations for lunch. If you plan to dine at lunch, plan a reservation that is after about 12:30pm so you are sure to catch the amazing Bavarian musicians.
Have a wonderful time and be sure to try some of the amazing bratwurst, scrumptious pork schnitzel, and black forest cake. You won't be disappointed.
~Allison L