Wash the chestnut pumpkin thoroughly, cut in half, and remove the seeds.
Wrap the chestnut pumpkin in plastic wrap and microwave for 6–8 minutes.
Scoop out some of the chestnut pumpkin flesh to make a bowl shape.
In a bowl, mix eggs, milk, salt, and pepper well.
Pour the egg mixture into the chestnut pumpkin bowl.
Top with cheese, then bake in a preheated oven at 180°C (356°F) for 15 minutes.
Finish with toppings such as parsley or bacon and serve.