- Bread roll
- Tomatoes and salt
Cut the rolls in half, butter both sides. Mayo on one, guacamole on the other. Chuck in a piece of salami, some sliced tomatoes (with a pinch of salt) and cheese.
Done. Easy. For the full picnic effect you should really stuff them at the bottom of a bag so they are all a weird shape. Alternatively pop in a nice box and enjoy later.