With his NASA Small Business Innovation Research program grant, Contractor will build a “pizza printer.” Although that may not sound very appetizing, pizza is an obvious choice for a first 3-D printed food as it can be layered with ingredients. The first layer, the dough, will be printed onto a hot plate that will immediately bake the base of the pizza. Then, powdered tomato puree will be mixed with oil and layered over the top. A layer of protein will also be added.