We don't use the built in oven...it's storage for pots and pans.
What we have is the NuWave Oven that sits on a counter-top. Place food, fresh or frozen into the oven. There is no need to preheat or defrost. Try multi-layer cooking by placing different foods on each layer, saving both time and energy.
NuWave Oven automatically cooks on power level HI so there is no need to select the power level unless you want to cook on a lower temperature setting. Simply set the timer, press the "start" button and wait for your food to be done.
Below was our Christmas dinner on the road last year;
Click here to see what you can cook with the NuWave.