« Lan Luk Maii Deang » is a nice Thai restaurant behind the main Tesco-Lotus in Korat. It is just at the back entrance or back exit of that main Tesco-Lotus. I used to go there around 2005-2008 but stopped for different reasons.
The «yellow curry crab » (Poo Pad Pong Kali) is delicious at 250 baht. One of the best I had in Thailand. We also highly recommend the Squid “Pad Cha”.