I brought an electric frying pan to cook with. We made eggs, tuna melts, grilled cheese, burgers. Plus we made soup, Easy Mac type things in the microwave.
The mousekeeper used to wash the pan for us, so it was NOT considered illegal or a problem to have it there. I'm sure it would be a problem in a regular room, but the kitchenette had counters and electrical outlets right there to use the pan safely.