This is a dish I knew of as 'chiraishi zushi' in Japan. In Japan it's basically the rice then layered with ingredients you would normally find in the middle of a sushi roll. In Faking It it is a rice base, topped with 'japanese' ingredients, like tofu, black sesame seeds and nori (with cucumber and snow pea sprouts), with a dressing of citrus, rice vinegar and soy sauce. In Japan I typically ate chiraishi zushi that had sashimi tuna or salmon, shredded omelette, spring onion and salmon caviar.
My version? A rice base, the dressing from Faking It, carrot, corn, snow pea sprouts, avacado, pickled ginger and a fillet of salmon on top. Delicious. Though it did make me miss Japan..