From film and the media as well as a great deal of written work we have a vision of the Vikings as packs of big chaps given to feasting on large lumps of all sorts of meats and fine foods, at the expense of others, of course.
Inevitably, science married to archaeology and testing the remains of the Vikings, their bones and teeth has spoiled it all. Reality, as ever, seems to be different.
What we may have as their desirable and basic meals seems to be along the lines of cabbage soup, gently poached haddock, or other fish, along with parsnips or such and a lump of rye bread. Afters might well be a bowl of stewed oatmeal with a touch of honey.
It might explain a very different reason for all that raiding all over the place.
They were looking for take away meals.