1/2 c. lime juice
1 clove garlic, minced
1 tsp. marjoram
4 (6 oz.) tuna steaks, about
3/4 inch thick each, skinned

Combine lime juice, garlic, and marjoram in an 8 x 8 inch glass baking dish and add the tuna. marinate covered for 3 hours. Grill over medium heat for 8 to 10 minutes on each side, basting frequently with the marinade.