Pre-heat the oven to 200°C / 392°F.
Peel the skin off the sweet potato and cut them into thin round pieces.
Coat with salt and olive oil, making sure all slices and evenly coated.
In a muffin pan, assemble the sweet potato slices in a shape of a flower, starting with the base.
Bake it in the oven for 5-10 mins until sweet potato cooked through a little.
Take the muffin tray out and add 10g (or more) cheese each, followed by cooked or raw spinach and then raw egg on top. Season with some salt
Bake them in the oven for 10-15 minutes.
Sprinkle some black pepper and enjoy!