While
all the restaurants at WDW are accomodating to Mrs
DVC Mike's numerous allergies (gluten, soy, most forms of vinegar, strawberries, watermelon, etc.) and preferences (vegetarian, low-salt, etc.), some are more accomodating than others.
Based upon our experiences, the Chefs at Le Cellier were more accomodating than those at Les Chefs de France. Of course, a lot of times it depends on which chef you get.
With my DW's numerous allergies, they typically create something special for her.