The mayor said he was delighted to officially reopen the venue under its new name after its major revamp last month.
“This is fantastic news for our town as Rouge becomes the first location in the UK to embody the new brand for the group,” said Mr Mundin.
“I loved the new décor, being sophisticated yet relaxed, warm and inviting and the atmosphere was second to none,” he said.
“The specially crafted cocktails looked striking on the vibrant new bar area and the revised menu reflects classic French flavours with a modern brasserie flair.”
Mr Mundin said it was wonderful to see a Haywards Heath restaurant getting such a large investment, adding that general manager Javier Llopis and his team had worked hard to get Rouge ready for the opening.
“This is a really exciting move forward for the business and I wish them every success,” he said.
“They have a wonderful team on hand to give a warm welcome so I really hope our community will get on board and enjoy this fabulous new destination for our town.”
Café Rouge is owned by Big Table Group, who operate more than 150 restaurants in the UK and Ireland.
Visit www.caferouge.com to find out more.