Better than expected. If you don't have the time to marinade, I would recommend this. I used green onions and broiled on low, alterating between the top and bottom rack. I think the sauce would burn and the tuna would be undercooked if you left it on the top rack. I estimate total cook time to be 15-20 mins. For seasoning in the sauce I used almost equal amounts of parsley, dill, Italian seasoning, and oregano.