Everyone camps differently, that what makes camping so fun. But we do use our oven a good amount. Often enough that we wouldn't want to be without it. But we do have our favorites like:
cinnamon rolls in the morning,
garlic bread with pasta,
and taco shells.
Early and late in the camping season when it is cooler, we like slice and bake cookies in front of the campfire with hot chocolate. ;D We've even made apple crisp. :
It seems with the children, if we bake something they like, it them becomes a tradition. So, frequently before we go camping they usually have their requests.
However, our first season camping we used it very little. But over time we've used it more and more.
We've found with the fan vent, we can usually get the inside of the trailer equal to the outside within 30 minutes of shutting the oven off.
I'm sure if you dry camp, the consumption of electricity from the fan would be a factor.