I have so heated a really well-filled deep dish as was potatoes, sausage, vegetables, gravy everything on it.
This it is a deep dish, I would have expected the cooking of the border and inside everything is cold - nil.
Inside there is and where most is to be heated most because everything was nice and warm and also outside it was not too hot.
Fantastic, 600 Watt set, about 3 minutes and 1 lunch for an adult is warm.
I am pleased with my purchase and would recommend the appliance on.