“Happy Meal” is a service targeting people in their 20s to 40s, which through the campaign of eating together, seeks to resolve major problems faced by single-person households, including economic difficulties and psychological issues such as chronic loneliness. This service aims to solve the problem of the single-person households having the lack of spaces to cook by providing smart shared kitchens and offering an opportunity to cook and eat together. This locally based service will provide people with an opportunity to build new relationships with their neighbors and promote the sustainability of future society by reducing food waste, which is increasing due to the current eating alone trend.