Preheat the oven to 220C/200C Fan/Gas Mark 6. In an oven proof pan over a medium low heat, drizzle in a little olive oil scatter in the spinach leaves crack the eggs on top and arrange the avocado slices around the egg yolks. Top with grated cheese and a pinch of chilli flakes.
Bake the eggs in the oven for 6-8 mins until the whites are set but the yolks are still runny
Garnish with the flat leaf parsley and serve immediately with toasted sourdough.