Add Yahoo as a preferred source to see more of our stories on Google. Shake Shack burgers, fries, and chicken - Ant Dm/Getty Images Sometimes it feels like you can't leave the house without dropping ...

Fast casual restaurants’ rally will depend on whether the companies can prove their growth stories are durable.

The burger chain Shake Shack told investors on Monday that it plans to expand aggressively in the years ahead. Its goal is to eventually operate 1,500 stores. Currently, it has just over 300. The move ...