You can find "Stir-fried Snails" in a number of restaurants but often it depends upon a restaurant's inventory. It is sometimes offered on the "Midnight Snack" menu and sometimes it's on the Chinese language menu. Your best bet is to ask your waitstaff if the restaurant offers snails. The Cantonese version is usually offered stir-fried in black bean sauce which includes some minced or shredded pork. Check out
China Cafe
Mountain View
Triple Crown
It's cool when they grind down the tail end so that you can just suck the snail right out of the shell instead of using a toothpick. A plate of these is great with a bowl of white rice and a cold beer while enjoying some television. Happy sucking !!