To Make Cauliflower Rice: Cook the cauliflower rice until tender and let it cool. Blend in rice vinegar to add the real taste of sushi rice.
Lay Nori Sheet: Spread a bamboo sushi mat on the flat surface, cover it with plastic wrap and lay 1 nori sheet on top.
Spread the Rice: Spread the cauliflower rice in an even layer over the nori sheet, leaving about 1 inch clear at the top end.
Add Fillings: Place fresh salmon slices, avocado, cucumber strips, and cream cheese in the center of the rice layer.
Roll the Sushi: Pick up your bamboo mat, and start rolling from the bottom to the top very tightly using your hands and gently pressing it as you go.
Slice and Serve: Wet a sharp knife, slice into bite-sized rolls and serve with soy sauce, wasabi or ginger.