Boston jut got one step closer to a potential Shake Shack. The Massachusetts legislature approved a measure yesterday that would allow restaurants in the Boston Common’s Pink Palace and the Fens’ Duck Hut, reports Universal Hub. Once the measure is approved by Governor Patrick, interested parties will submit a formal Request for Proposal. Thus far, the Shake Shack, Legacy Place’s Met Burger Bar, and The Common Room, a seafood shack from former Biltmore Room owner Jeffrey Mills, have all expressed interest in the Pink Palace. The park restaurants could open as soon as next summer.