Wash the chestnut squash thoroughly, cut it in half, and remove the seeds.
Wrap half of the chestnut squash in plastic wrap and microwave for 4-5 minutes.
Scoop out some of the cooked squash to form a bowl.
Crack an egg into the hollowed-out squash.
Season with salt and pepper.
Bake in a preheated oven at 180°C for about 10 minutes.
Garnish the baked squash with herbs or parsley.