I assume you mean US?
There are quite a bit of threads discussing food on this forum so you may want to search these:
http://www.flyertalk.com/forum/us-ai...s-food-us.html
http://www.flyertalk.com/forum/us-ai...s-phl-sfo.html
http://www.flyertalk.com/forum/us-ai...ion-order.html
You are likely to get an egg dish and either a French toast or oatmeal dish as options. On rare occasions I've gotten just cold breakfast with cereal.