Finely chop the onion and add it to the oil. Sauté over heat until it turns color, adding a bit of black pepper.

Then add the corned beef and stir well until it separates. Add a bit of black pepper, salt, garlic powder, and a pinch of nutmeg. Stir well until everything is well combined and half-cooked. Add the peppers and stir over medium heat until cooked.