Preheat the grill to high heat
Pat the tuna steaks dry
Brush the tuna steaks with oil
Season with salt and pepper
Optional: add garlic, lemon, or herbs
Clean and oil the grill grates
Place the tuna steaks on the grill
Grill for 1 to 2 minutes per side for rare to medium-rare
Grill longer only if you want them more cooked
Avoid overcooking
Remove from the grill
Let rest for a few minutes
Serve immediately