Wash the sweet pumpkin thoroughly, remove the seeds, and cut into appropriate sizes.
Place the sweet pumpkin pieces in a steamer and steam until soft.
Let the cooked sweet pumpkin cool, then peel off the skin.
Put the pumpkin into a bowl and mash it.
Chop the boiled eggs, cucumber, onion, and other ingredients into small pieces.
Add all ingredients to the bowl with the sweet pumpkin.
Season with mayonnaise, salt, and pepper to taste.
Mix well and serve in a dish.