Wash the pumpkin thoroughly, remove the seeds, and cut into 2-3 cm pieces.
Place the pumpkin pieces in a steamer and steam for 15 minutes until cooked.
Remove the skin from the cooked pumpkin and mash it.
Finely chop the boiled eggs.
Thinly slice the onion and soak it in cold water to reduce its pungency.
In a bowl, combine the mashed pumpkin with eggs, onion, plain yogurt, salt, and pepper. Mix well.
Transfer to a serving dish and serve.