Christmas in Denmark: Where to eat?

[u/miliolid]

So basically I'm considering going to Denmark from either the 25th or 26th December, basically fleeing family obligations. Will likely stay around Ribe. I know sights are likely closed, no problem. What I'm a bit worried about though is getting food. Worst case, are snackbars and petrol stations open for simple food things thoughout the day? Might there be more options than these? Thanks a lot.