Which author made the remark you gave them for dinner a piece of roast beef and plumb puddings after half pint strong beer piece?

The remark you're referring to is likely from Charles Dickens's novel "A Christmas Carol", specifically from the character of Ebenezer Scrooge.

In the story, Scrooge is visited by the Ghost of Christmas Present, who shows him the Christmas celebrations of the Cratchit family. The Ghost then says:

""You'll want to know, how they got on?"

Scrooge, being a miserly and grumpy character, replies: "Well! It's a very good thing, I am a very good thing, that I am bad. If I had been a good man, like my father, I might have been alive to-day, to hear this!"

This is followed by the Ghost of Christmas Present saying, "I am the Ghost of Christmas Present. You have never seen the like of me before!"

While Scrooge doesn't explicitly say "a piece of roast beef and plumb puddings after half pint strong beer", the scene depicts the Cratchit family enjoying a simple and festive meal, which includes roast beef and plum pudding, something Scrooge might have considered a luxurious meal.

It's important to remember that Dickens uses this scene to contrast Scrooge's miserly lifestyle with the joy and generosity of the Cratchit family, highlighting the importance of compassion and generosity during the Christmas season.