French chefs are helping the European Space Agency develop recipes that could be used to make food grown in space tasty as well as nutritious. How about a tasty snack of Martian bread and green tomato jam or potato and tomato mille-feuilles? The menus were based on nine main ingredients that could be grown in future space-based greenhouses. The dishes could be made with 40% of these ingredients, and the remaining 60% could come from Earth-based ingredients.