1/8 c orange juice
1/8 c soy sauce
1 small garlic clove minced
1/4 t oregano
1/4 t pepper
1/2 T lemon juice (I also poured a little on right before serving)
1 T olive oil
1 T chopped parsley
Mix above and marinate 3/4 to 1 lb tuna steak for at least 30 minutes in fridge.
Heat pan (I used cast iron) with a little olive oil and a sliver of butter. When very hot add marinated tuna about three minutes on each side.
Fast and delicious dinner!