Preheat oven to 180 degrees C. Prick bottom and sides of base and bake 10 minutes, until lightly brown; set aside to cool.
Place bacon in a frypan over medium-high heat and cook until evenly brown. Drain, crumble and set aside.
In a bowl, mix eggs, milk, mustard and nutmeg. In a separate bowl, toss bacon with flour to lightly coat. Spread 3/4 of the bacon mixture and Swiss cheese over bottom of the base. Pour egg mixture over bacon mixture. Top with remaining bacon mixture.
Bake 1 hour in the preheated oven, or until a fork inserted in the centre comes out clean. Cool 10 minutes before serving.