I've recently had the craving for Tuna Steaks and was wondering if anyone had a good recipe they'd be willing to share with me. Last time I marinated the steaks in lemon juice, oil, rosemary, and garlic and grilled it over hot hot coals to a nice medium rare finish. Topped it with some fresh greens, fresh rosemary and grilled red peppers and stuck it on a sesame seed sandwich bun. It was mighty tasty. Any other suggestions?