This sandwich is based wholly on potato salad. Invented by my mother and I. Put it in the ice-box for lunch anywhere! Use any type of potato salad.
Open bun and spread each side with mayonnaise. Place lettuce leaves and tomato slices on bottom half of bun. Scoop potato salad onto tomato, and gently spread toward edges of bun. Cover with top of bun.
Per Serving: 379 calories; protein 7g; carbohydrates 36g; fat 23.5g; cholesterol 38.2mg; sodium 637.3mg.