Wash the sweet pumpkin thoroughly, remove the seeds, and cut it into bite-sized pieces.
Place the pumpkin pieces in a steamer and steam for 15 minutes.
Once the pumpkin cools, remove the skin and mash it in a large bowl.
Finely chop the onion and cucumber.
Add the chopped onion, cucumber, yogurt, salt, and pepper to the mashed pumpkin and mix well.
Transfer to a bowl and sprinkle with nuts to finish.