This 38-unit casual dining chain may be small compared to many of the other chains whose food I've cloned, but Houston's has a huge following of loyal customers throughout the country. I know this because for many years the restaurant sat at the top of my "most requested clones" list. I was finally ready to take on the challenge, but since there are no Houston's where I live in Las Vegas, it required a road trip -- this time to Orange County, California. A couple plane rides, a bit of driving, some walking and a stumble or two later, I had a cooler full of Houston's goodies secured safely back at the underground lab. After a few hours of chopping and mixing this simple sweet-and-sour salad slather from Houston's was cracked.