Shake Shack (SHAK) came out with quarterly earnings of $0.27 per share, in line with the Zacks Consensus Estimate. This compares to earnings of $0.18 per share a year ago. These figures are adjusted for non-recurring items.A quarter ago, it was expected that this burger chain would post earnings of $0.10 per share when it actually produced earnings of $0.13, delivering a surprise of 30%.Over the last four quarters, the company has surpassed consensus EPS estimates three times.Shake Shack, which belongs to t ...