Put a skillet over medium-high heat. Brush one side of the nori with the oil and sprinkle with salt. Put a single nori sheet in the pan and toast it until it shrinks up, about 15 seconds; turn it over and toast the other side for 15 seconds. As they finish, stack the sheets on a plate.
Use scissors to cut the sheets into rectangular “chips.” Serve right away or store in an airtight container and eat within a day or 2.