In a wok, heat oil over high heat.

Add onions and garlic and cook until onions are translucent in color.

Add tomatoes and cook until softened.

Add ground beef and sauté until well-cooked.

Add soy sauce and black pepper.

Stir all ingredients together then transfer to a bowl. Set aside.

In the same wok, add more oil as needed.

Add potatoes and sauté until cooked..

Add salt & pepper then continue to stir.

Transfer out from the wok to the same bowl where the ground beef mixture is.

Let beef and potato mixture cool down a bit.

Add eggs, salt and pepper. Mix all ingredients well.

In the same wok again, add oil if needed. Heat over medium heat.

Place half of the beef & potato mixture into the wok and spread into a single layer.

Cook for a few minutes until firm on every side.

Flip the omelette over until firm on all sides.

Remove from pan and transfer omelette into a serving plate.

Cook the remaining beef & potato mixture into the wok.

Serve and enjoy.