This is a really cool idea. Especially to add to my bag of tricks. I'm not a huge fan of eggs, but I've found that many, many foods I'm not really too fond of suddenly taste so much better when cooked over a wood fire. And, most of the nice flat rocks I've ever seen that would be suitable to fry an egg upon are usually wet. And we all know what can happen with wet rocks and fire, right?

Any other tasty ideas that are field expedient?
-Kyle