Core and thinly slice 1 green apple. Mix 1 tablespoon Dijon mustard and 1/4 cup chopped walnuts into 1/3 cup Hellmann's Herb Sensation Mayonnaise. (For extra flavor, mix in a few drops of hot sauce or some fresh herbs.) Spread it on 8 slices of wheat bread, then make sandwiches with the sliced turkey and apple.