Slice the king oyster mushrooms and green chilies into bite-sized pieces and place them in a pan.

Rinse the Spam in hot water and cut it into bite-sized pieces.

Drizzle canola oil into the pan and add oyster sauce to taste.

Stir-fry until the ingredients are evenly coated and cooked through.

Add the prepared Spam, sprinkle black pepper and sesame seeds, and stir-fry briefly.