Mexican Marinade:
1/4 cup olive oil
1/4 cup lime juice
1 clove garlic, minced
1 tbs. fresh cilantro (Mexican parsley) chopped
4 - 8 oz. tuna steaks
salsa ready-made warmed

Combine marinade ingredients, pour over tuna in non-metallic dish and
marinate 1/2 hour to 1 hour.  Broil or grill 4 inches from heat 10 minutes
per inch of thickness, turning once, basting often with marinade.  Tuna is
done when still slightly translucent in center.  Spoon warmed salsa over
top of each steak.