I bought a cast iron Dutch oven forever ago and may have used it once, so since I hauled it all the way up with us, I was bound and determined to use it. However I didn't really come prepared with a recipe, so ended up just throwing a can of baked beans and some chili in it and putting it down in the embers. It cooked remarkably fast and was pretty tasty. Next time we'll come prepared and make something from scratch.
In between, the fire-building and cooking we did some exploring around Big Bear and then just hanging out. A pretty chilled day.