When I bake things I like to wrap a plate in tin foil and use the plate to bake things. The plate is made of baked clay so it stores heat and re-emits heat after the oven has been switched off and keeps the food hot. The foil paper keeps the plate clean by separating it from the food. When the plate is removed from the oven it can be slid onto a wooden cutting board and then it isn't too hot to handle and it is rigid so it is easier to do it that way.
If I am using only one shelf I would turn off fan assistance if I can because the fan pushes the hot air around the oven and makes all the shelves the same temperature but it takes longer for the heat to build up. It is a nice feature because you can turn the temperature to 200°c and know that all the shelves are 200°c but you have to wait 10 minutes before all the shelves are that temperature. When fan assistance is off the top shelf is more hot then the lower shelves but the top shelf is hot in just 3 minutes.
