In a bowl, combine all the ingredients. Salt and pepper.
Spread the chicken salad over the baguette bottom piece. Add the spinach and celery leaves and drizzle with the oil. Cover with the top baguette bread. Secure with the four toothpicks and cut into four sections.
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.