So, it turns out that beer gardens are pretty much exactly what the name implies. You go to a big garden area, and they serve beer. The one we went to also had food ... we ate a pizza that had white cream sauce instead of marinara, and meat balls that were really sausage patties. And beer, of course. There were a bunch of picnic tables to eat at, and a huge rectangular strip of grass for the kids to run around on. Also some gardens, although we didn't check them out. A pretty pleasant and inexpensive way to have a meal with family and friends.