Peel and cut avocado into 1/2 inch pieces.
Peel grapefruit and use only the flesh without the thin white skin in between the fleshy parts and cut or tear into pieces.
Wash, peel (if wanted) and cut apple, tomato and cucumber into pieces. Cucumber should be cut into as small pieces as possible (tastes a lot better that way).
Mix all the fruit and vegetables together, add lemon juice, soy sauce and black pepper.
Grab a slice or two of whole grain bread and enjoy.