Choose fresh or canned tuna
If using fresh tuna, pat it dry
Season with salt and pepper
Heat a pan or grill over medium-high heat
Add oil to the pan if needed
Cook fresh tuna 1 to 3 minutes per side for rare to medium-rare
Cook longer if you want it more done
Remove from heat and let rest briefly
If using canned tuna, drain it
Mix canned tuna with mayonnaise or another binder if desired
Add salt, pepper, and any preferred seasonings
Use in a sandwich, salad, pasta, or wrap
Serve immediately