The scheme is available over 500 pubs across the UK as part of a fundraising push for the cancer support organisation.
Rachel Gascoigne, partnership manager at Macmillan Cancer Support wanted to thank everyone at Greene King for their generosity in helping show how the nurses’ work is appreciated.
She said: “Our nurses and other professionals work so hard to make lives better for people affected by cancer, so it’s wonderful to see their work recognised on International Nurses’ Day.
“This is a truly lovely gesture and is a brilliant way to kick off our fourth year as Greene King’s chosen partners.”
The pubco has been supporting the charity for the last three years and has raised over £2 million over this time.
Fiona Gunn, Marketing Director for Greene King said: “Macmillan nurses work tirelessly to support people with cancer, and their care makes such a difference in the local community.
She added: “We’re proud to support Macmillan and want to reward them, so we hope they enjoy our offer of a delicious free roast every Sunday throughout May!”
“May is a key month for nurses, both in the UK and internationally, so we decided to mark our Macmillan May fundraising drive and celebrate their hard work.”
May 12 saw International Nurses Day which is also the world renowned nurse, Florence Nightingale’s birthday.