Prepare avocado by cutting in half, removing pit and scooping pulp in to a small bowl. Mash with a fork until just lightly chunky. Add lemon juice and salt and pepper, to taste.

Prepare the goat cheese by adding a good amount of freshly ground pepper to the goat cheese crumbles.

Toast bread until golden. Once toasted, butter the slices and then add a bit of grainy or Dijon mustard to one slice of each sandwich. Top the mustard with a layer of baby spinach. Top the spinach with a layer of the mashed avocado. Top the avocado with some crumbled goat cheese. Top the goat cheese with diced chives. Add a layer of cucumber and then top with a layer of sprouts. Add top slice of bread. Press down to compress slightly and cut in half diagonally to serve.