We like to visit the Fulacht Fiadh in Falcarragh whenever we are in the area.
It's small but very cosy and seems to be quite popular with the locals (always a good recommendation). The food is definitely home-made and served with a smile (special requirements or wishes are no problem with the staff). We have never been disappointed by the food.
Note: on all of our visits we found the toilets to be very clean. This is important!