Toasted sourdough with avocado, radish and watercress Serves: Makes 20 Ingredients 1 small ripe avocado 1 lemon, juiced 2 tbsp extra virgin olive oil salt and pepper 5 thin medium sized slices sourdough bread 2 tbsp olive oil 50g mixed radishes, thinly sliced ½ red onion, thinly sliced 1 bunch watercress, picked Instructions Preheat the