Sp2a.c.e. T.wirl for the astronauts (NASA competition 2004-05)

Sp2a.c.e. T.wirl (Sweet Potato, Spinach and Cabbage Edible Tomatoes) is a dehydrated multi-layered vegetable roll developed for in-space production. It is composed of three delectable sweet potato-tomato based layers. The vibrant orange outside layer is made from sweet potato and tomato. The next layer is made from the sweet potato-tomato base plus spinach, which imparts a hunter green color while the innermost layer is made from the sweet potato-tomato base plus cabbage, creating a deep, rich purple color. Sp2a.c.e. T.wirl provides the convenience of one complete serving of vegetables that can be eaten anywhere without additional preparation.