Put the oil in a saucepan on a medium heat. Dice the onion and add to the pan. Cook until soft, then finely slice the garlic and add.
Chop the chilli and add to the pan alongside the tomatoes. Bring to a boil and reduce to a simmer. Cook until the sauce thickens, about 15mins.
Meanwhile slice the ‘face’ off the mushrooms. Leave the top to one side and dice up the stalk and add to the pan.
Place a wholemeal wrap on a pizza baking tray, spoon over tomato mix and spread to the edge.
Finely slice the mushroom heads and scatter over. Slice the mozzarella into 5 slices and place on top of the mushrooms. De-stone the olives and add to pizza. Finally crack an egg over the top and cook for 10-15mins.