SushiStop actually does ama ebi (live sweet shrimp) and uni? It wasn't great, but for under $3 a plate... well... what can you expect? Also managed to get seated pretty quickly, which matters when you're hungry!
Churros Calientes off Santa Monica Blvd. isn't great churros, but they do the proper thick chocolate for dipping. Probably as close as I've seen in the USA...