Place the corn,masa & salt in a blender. Cover & pulse for a few times the break up the corn. Remove from the blender & spread evenly on a 8 (3 inch) cakes.
Heat the oil in a large nonstick skillet or frying panon medium heat. Add the corn cakes,cover & cook for about 5 minson each side or until golden brown. Gently flattening the corn cakes woth your spatula after turning over.
Sprinkle with the cheese & cover. Remove from the heat & let stand for about 3 mins or until the cheese has melted.