Categories French Recipes Side Dish Roast Potatoes with Mirepoix Post author By Kevin Lamoureux Post date 03/13/2016 6 Comments on Roast Potatoes with Mirepoix Mont Blanc rises behind Chamonix, France. Photo: K.R. Lamoureux Potatoes are roasted with with the classic French flavour trio of diced onions, carrots and celery. Tags casserole, cuisinart, Dutch oven, le creuset, mirepoix, potato, potatoes, roast