Given that the kitchen robot is a way off, why hasn't more simply forms of kitchen automation taken off?
For example, consider an integrated freezer and microwave/oven. Pre-prepared meals in standardised containers are inserted by the users into slots in the freezer. Based on a timer or input via the internet (e.g. from a smartphone), the meal is removed from the freezer and into the oven.
This is fully do-able with existing technology. Is it commercially viable? Such a device would cost more than a separate microwave/oven and freezer, partly due to the need to connect to the internet (e.g. via wifi) and have a controller. However, it could be sold at a loss, as the set size of the containers would lock-in customers wishing to buy pre-prepared meals.