If you are on a low carb diet then you have to watch the rice. Try to have a seaweed salad, bowl of soup, one roll stuffed with veggies and fish and a sashimi plate. If we're at an all you can eat i sometimes order a shrimp roll but only eat the shrimp and leave the rice.
Just make sure to add everything into your food diary and make sure you don' go over your RDI . I sometimes put it in before I go out to eat so I know exactly what to order.
If it is a plant, eat it, if it comes from a plant, don't!