Moules aux Epinards

Monsieur Bremond of the Hostellerie Le Paradon in Lourmarin has a long family history in Provence, and more than a touch of olive oil in his veins. He remembers his grandfather, a staunch believer in the beneficial properties of the olive, taking, without fail, one tablespoon of olive oil every day before breakfast, Grand-mere Bremond preferred her oil with a few additions. Here it adds taste to a gratin of fresh spinach & mussels, a dish she used to cook at the last minute every Christ