Wash the pumpkin thoroughly and cut into bite-sized pieces.
Prepare the red onion and cherry tomatoes.
Steam the pumpkin in a steamer for about 10 minutes.
Put the steamed pumpkin and prepared vegetables in a bowl.
Add olive oil, salt, and pepper and toss gently.
Place the ingredients on a preheated pan and stir-fry over medium-low heat for 3-4 minutes.
Transfer to a plate and sprinkle with nuts to finish.