RecipesSandwichesTuna Fish and Mustard Pickle Sandwich Filling+ Add to menuPrint recipeSandwichesTuna Fish and Mustard Pickle Sandwich FillingIngredients1 can (small size) tuna fish1 cup mustard pickleSalt, pepperInstructions1Flake tuna fish very finely. Chop mustard pickle and add to fish, add salt and pepper to taste. If more liquid is needed to make a softer paste, add water. 12 sandwiches.