I'm no historian but I'm pretty sure the closest that Montezuma got to Adelaide was his backyard toilet. Nevertheless, the restaurant Montezuma's tries hard to recreate an authentic Aztec eating establishment - or not. The color scheme of the place resembles and explosion in an M&Ms factory where the notion of "too colorful" doesn't exist. Still, it's a fun place and was very busy to say I was there on a Monday. The Chili Verde with Spanish Rice was spicy enough, with wonderfully tender meat, but the rice was rather overcooked; unless they prefer their rice dry and crispy at the edges in Mexico. I think maybe not.
The owners clearly have a sense of humor though. The toilets are not marked "Men" and "Womens" or even "Hombres" and "Chicas" but "God" and "Goddess." Irreverent but appealing, especially to self-absorbed egotistical avatars like myself.
Oh, and for those familial with the phrase "Montezuma's Revenge" as a description of bowel functioning the day after consuming spicy Mexican food, I didn't need to go through any "God" doors today. And clue number two - the name of the restaurant - means you could hack into the databases of the credit card companies and search for a receipt that includes the purchase of a Chili Verde. Go to it , Sherlock!