With an expanding store base, stellar revenue growth, and a niche spot within Mediterranean cuisine, Cava seems poised to continue its remarkable growth story.With markets so high, it's particularly tough these days to entrust capital to high-valuation stocks. In Cava's (CAVA 2.86%) case, the Mediterranean food chain might be the exception. The stock is up over 26% in the last five days, thanks to a stellar second-quarter earnings report. I see this chain as the new Chipotle (CMG 0.81%) with great growth po ...