Heat the oven to 350 degrees F/175 degrees C.
Fry the bacon gently to cook, but not to make crisp. Drain on a paper towel. Spread over the baked tart shell. Whisk together the eggs, using a fork, then add the cream. Sprinkle with some salt, pepper and nutmeg. Strain the egg mixture into the tart shell and bake until set, about 30 minutes. Serve very hot.