Preheat the oven to 180° Celsius

heat the olive oil in a frying pan

sauté the onions

add the garlic, ginger, ras el hanout and cook until you can smell the spices

add the mince and brown

add the tomatoes, carrot and mushrooms

season and cook until the mushrooms are soft

set aside to cool

while you are doing this steam your potatoes

when soft melt some butter in a pot and put the potatoes through a ricer

purée the peas and add to the potatoes with the crème fraîche

season

add the mince to an oven proof dish

spoon or pipe on the potato and pea mixture

bake for 20 minutes