Abstract: A robotic meal preparation system includes a robotic meal assembly device configured to assemble a meal using multiple ingredients; a computer-implemented system is configured to display to a consumer a menu or list of meal choices, in which a specific meal has a number of different main ingredients, each at a pre-set weight, and the system is further configured to enable the consumer to select a meal and to then vary or set the weight of one or more of the main ingredients of that selected meal, to form a customised or personalised version of that selected meal. The robotic meal assembly device is then configured to assemble that customised or personalised version of that meal. The system hence provides complete meal personalisation, with high levels of consistency, greatly increasing customer satisfaction and reducing food waste. And does so quickly and efficiently, based on rapid, robotic preparation of each meal.