Heat the vegetable oil in a skillet over medium heat.

Add the diced potatoes and cook until they are golden brown and tender, about 15 minutes.

Stir in the diced onion and cook until translucent, about 5 minutes.

Add the corned beef to the skillet and mix well. Cook for an additional 10 minutes, allowing the beef to brown slightly.

Season with salt and black pepper to taste.

Garnish with chopped parsley before serving.