They serve Portuguese breakfast and lunch! This means egg and custard tarts along with tapas (after 4 PM.) Come in and line up at the counter where the cooks are working. Give someone your order and grab a table.
This is not a large restaurant so go early if it's breakfast you want. We were there around 9:30 AM. and there were no tables but a sweet Canadian (most are very gracious) offered us hers. They serve illy coffee so my cappuccino was great, of course. But does anyone serve a bad cup o' Joe in Montreal?