Choose fresh tuna steaks or canned tuna
If using fresh tuna, pat dry with paper towels
Season with salt, pepper, and any desired spices
Heat a skillet, grill, or pan over medium-high heat
Add a small amount of oil if cooking fresh tuna
Cook fresh tuna for 1 to 3 minutes per side for rare to medium-rare
Cook longer if you prefer it more done
Remove from heat and let rest briefly
If using canned tuna, drain the liquid
Mix canned tuna with mayonnaise, mustard, lemon juice, salt, and pepper if making tuna salad
Add chopped celery, onion, or pickles if desired
Serve tuna with rice, salad, bread, or pasta