I know someone who worked at a failed startup that attempted almost exactly this minus the AI. It used an IR camera paired with a secret method to beam form the

I know someone who worked at a failed startup that attempted almost exactly this minus the AI. It used an IR camera paired with a secret method to beam form the microwaves to uniformly heat the food no matter how it was dispersed across a plate. This means you could have a pile of water rich vegetables and a steak on a plate and it would heat evenly. It worked great nut IIRC the issue that caused it to fail was calibration of the IR sensor took a ton of effort and they could not scale that to a production scenario. Edit: should mention it let you dial in a temperature so the method is workable, just needs to scale to production.