If using broad beans in their pods: run your finger along each pod to open them, then push the beans out into a bowl. Small beans can be left as they are. Large beans need to be removed from their tough leathery skin. To do so, cook for 5 minutes in boiling water, drain and place into a bowl of cold water. Break the skins and gently squeeze out the bright green bean. If using frozen broad beans, simply measure out 160g in a bowl and set aside to thaw.
Place the nectarine, broad beans and spinach in a large mixing bowl. Add the chilli oil and a good pinch of salt and pepper, then toss to combine.
Layer the salad and sliced tomatoes onto two plates, then top with the mozzarella.