the pic for galette doesn't look like anything like it, it might be a kouign amann, but it looks kinda weird, or it might be a galette des rois, we have gone from savory to sweet in both cases.
here's a galette:
It's buckwheat crepes, ham, cheese and a raw egg., you can ask for no raw eggs.
There's lot of variation that change the filling, the only important point is buckwheat crepe.
it's a relatively cheap meal.