This fast-growing restaurant chain has won over many investors already.In the past five years, Chipotle has crushed it for shareholders, skyrocketing 340%. The Tex-Mex fast casual concept is still expanding rapidly, while posting incredible profitability. It makes sense that investors seeking the next big industry winner are now taking a closer look at Cava (CAVA 6.87%), a much smaller chain.This surging restaurant stock is already up nearly 90% year to date. Does this powerful momentum make Cava a once-in- ...