First stop - the boulangerie.
I recommend the macaroons (quite different than macarons) - sensational just like my mum use to make in the 1970's hot out the oven, coconut, crisp and slightly brown on the outside but a soft flavoursome centre.
Go with the 6 for 2 euros.
There are several small supermarkets selling all sorts of produce from local cheese to good quality ski gloves. And just incase, there is even a heart defibrillator in the main street right next to the library!
Top 10 for Les Cabannes
Le Boulangerie.......
Dinner at A La Montanha ( recommend booking).
Wander to the cemetery for a history lesson.
Have a go at trout fishing at the organic trout farm or the Aston River.
Buy a bottle of local wine and stock up on local cheese, ham and condiments from La Ferme Du Quie Les Cabannes.
Try a beer in the local pub but avoid the taxidermied animals especially the wolf on the bar counter!
Stroll through the Sunday Market.
In summer its the place to kayak, hike, horse-ride.
In winter hire some ski gear from either of the hire places in the village,
And head up the top of Plateau de Beille - unbelievable snow, skiing, dog sleighing and igloo building........