Sambal House was closed a few months ago and replaced with Soul Thai. They sell Thai food (duhh!) and have a really affordable lunch set. Only RM7.90 per set. There's also a lot of other choices and the food was good. I love the tomyam, white and hot, but it was not mine. I ordered the black pepper beef lunch set because it's cheap (I'm cheap) but it was equally tasty.
Soul Thai is located at Level 2 Johor Bahru City Square (two other outlets at Nusa Bestari and Bukit Indah). More info at their website.