Wash the kabocha squash thoroughly, cut it in half, and remove the seeds.
Steam the kabocha in a microwave or steamer for 5 minutes until cooked.
Scoop out the flesh with a spoon to create a bowl shape.
Mix the scooped kabocha flesh with eggs, salt, and pepper.
Fill the kabocha bowl with the mixture and add cheese on top.
Bake in a preheated oven or air fryer at 180°C (356°F) for 10–15 minutes.
Cut into serving sizes and plate.