Cut Nori sheets in half.

Place rice on rough side of Nori, spread to edges (except 1, leave 1/2 inch gap). Make ball of rice about the size of a baseball and spread, don''''t press to the edges. Sprinkle with sesame seeds and gently press them down.

Flip Nori sheet gently so rice is now under the sheet.

Place filling on Nori and make "line" down middle rice (parallel to uncovered edge). Use enough filling to make a line about 3 "fingers" wide.

Role sushi using bamboo rolling matt tucking exposed Nori inside roll to seal seam.