Clean, wash and cut the spring onions into rings. Let dough rest for about 10 minutes at room temperature. In the meantime cut ham into strips. Whisk eggs, cream and milk. Season well with salt, pepper and nutmeg.
Unroll the dough and roll out to a width of approx. 28 cm. Mark a circle (approx. 28 cm) (e.g. using a lid) and cut out. Place in a greased quiche tin (23-24 cm) sprinkled with flour. Sprinkle with breadcrumbs. Mix spring onions (up to 1 tablespoon for garnishing) and ham and place in the dish. Pour egg milk over it and sprinkle with cheese. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 45-50 minutes. Cover if necessary after 30-35 minutes of baking time.
Sprinkle with breadcrumbs. Mix spring onions (up to 1 tablespoon for garnishing) and ham and place in the dish. Pour egg milk over it and sprinkle with cheese. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 45-50 minutes. Cover if necessary after 30-35 minutes of baking time. Remove from the oven and garnish with remaining spring onions