Final answer:
The term used to describe the process of baking potatoes on a hard surface to increase mealiness is a) Crisping. This technique gives the potatoes a crispy exterior and a fluffy interior.
Step-by-step explanation:
The term for baking potatoes on a hard surface before serving to increase mealiness is a) Crisping. This method involves baking the potatoes until they have a crispy outer layer, which enhances their texture and makes them seem more mealy or fluffy on the inside once they are served.
Unlike grilling, which adds char marks and a smoky flavor, or plating, which is simply arranging food on a plate, crisping specifically aims to achieve a texture contrast in the potato itself. This is not to be confused with flattening, which would imply pressing the potatoes down to make them thinner or to create a different shape.