Using calcium, Yokotaya Honten has printed tidbits about fish and shellfish caught in this seaside city on nori sheets. The product, called Osakana Zukan Nori (Fish picture book nori), has been a hit.

The best way to enjoy this flavorful tuna, then, is wrapped into small sheets of nori. Known for its use in sushi, nori adds an earthy element to the tuna salad, essentially becoming a ...

The sheets are dried again and sometimes roasted. The end result: paper-thin, dark green, crunchy squares. The most common ...

Use a wet hand to press down on the rice to make a smooth, even layer. Place one of the nori sheets on top. Arrange your tuna, avocado and fresh chives in a straight line from top to bottom in the ...

Have a go at making these delicious, healthy nori rolls. Nori is roasted and rolled seaweed and comes in sheets. Put the rice in a pan with the water and bring to the boil. Cover and simmer for ...