I haven't found too many places that offer tuna tartare, except as a special, and they were few and far between. I'm happy to see they have it at Dreams and will have to try it next time. I don't recall ever seeing it at Bistrot, and the only place I've had it in Grand Case was at L'Estaminet (RIP).
It was on the menu at Bistro Nu when we were there in November, if you feel like driving to Marigot.
I find that mahi-mahi tartare is an acceptable substitute for tuna, unless you really have to have tuna, and is more prevalent than tuna.
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