Santa Eulalia de Oscos is a beautiful village in the Asturian hills about 45 minutes away from Granero del burro. It is one of the 3 'Oscos' villages - San Martín de Oscos and Villanueva de Oscos are the other two. It is well worth a visit as there are many walks from there and the drive to get there passes through some spectacular countryside. In particular the views from La Garganta back to the coast are wonderful.
In Santa Eulalia itself you can park at the top of the hill and there is a wonderful bar on the left. In it there is a shop where you can get your daily supplies as well as buy some walking boots. Have a look at the typical tables that pull down from the wall on each side of the door as you go in.
At the bottom of the hill is a fantastic restaurant called La Cerca. It a parilla (grill) and serves fantastic food in wonderful surroundings. The Caldo Gallego is typical food of the area (despite its origins in Galicia).