How to make a tuna sandwich with mayonnaise   Ingredients: 1 Can of tuna 2 Baguette or toast 3 Tablespoons (tbsp) mayonnaise Lettuce slices, as desired ¼ Cup chopped tomatoes Pinch of salt Pinch of black pepper ¼ Cup sliced ​​black olives Quarter of a teaspoon of cumin 3 Tablespoons of lemon juice   Method: Drain the can of tuna well from the oil.