As one might have guessed, the Monsanto House of the Future showcased a lot of plastic-- plastic counters, plastic ultrasonic dishwasher for plastic dishes, plastic "cold zones" instead of a fridge (which would have been plastic) and a plastic speaker phone. About the only thing that wasn't plastic was the magnetically-levitated, induction-heated frying pan.
Whether the lasagna was plastic was largely a matter of opinion.