The original Mr. Greenjeans opened in 1975 on Adelaide Street East, inside a plant store, and quickly carved out a niche serving comfort food with flair. The Eaton Centre location officially opened its doors in 1980. Mr. Greenjeans went through several renovations to keep up, including a major redesign in 2006 by TV designer Sarah Richardson, who added chandeliers and modern white dinnerware. In 2014, a sign appeared at the restaurant's entrance announcing that Mr. Greenjeans was closing for good, along with a bittersweet farewell message on Twitter (now X). Despite this, the memory of Mr. Greenjeans continues to live on in the minds of many who grew up in Toronto and remains a nostalgic part of the Eaton Centre's history.