1 Review 1 Ratings Tuna Mornay Delite - Low in Fat! Most Helpful Newest Highest Rating I copt this recipe for the Mornay Sauce adding a 1/3rd cup of grated parmesan. The sauce is delish 0 people found this helpful. Was it helpful to you? [Yes] [No] L DJ January 15, 2007 Show More Reviews Back To Top Tuna Mornay Delite - Low in Fat!