Combine first 3 ingredients. Cut off top quarter of nori sheet along short end. Place nori, shiny side down, on a sushi mat covered with plastic wrap, with long end toward you. Pat 3/4 cup rice over nori with moist hands, leaving a 1-inch border on one long end of nori.
Gently flip nori sheet. Spread 1 1/2 tablespoons cream cheese mixture along top third of shiny side of nori; top with 1/3 cup salmon.
Lift edge of nori closest to you; fold over filling. Lift bottom edge of sushi mat; roll toward top edge, pressing firmly on sushi roll. Continue rolling to top edge; press mat to seal sushi roll. Repeat procedure with remaining ingredients. Slice each roll into 8 pieces with a sharp knife.