Liberally season tuna with salt and pepper, to taste.
Heat olive oil in a skillet over high heat. Once oil is hot, place tuna in the skillet, in a single layer. Sear for about 1½ minutes on each side, or until desired doneness has been reached.
Remove tuna from heat. Slice tuna against the grain, and serve hot.
Recipe by The Little Chef at http://littlechefblog.com/seared-ahi-tuna/