1. Prepare the Potatoes

• Heat a generous amount of vegetable oil in a large skillet over medium heat.
• Add the sliced potatoes and season them with salt, black pepper, and oregano.
• Cook the potatoes for about 8-10 minutes, stirring occasionally, until tender and golden brown.
• Remove the potatoes from the skillet and set them aside.

2. Cook the Ground Beef

• In the same skillet, add more oil if needed.
• Sauté the chopped blue onion and minced garlic for 2-3 minutes until fragrant.
• Add the ground beef, breaking it apart with a spatula. Cook until browned, about 5-7 minutes.
• Stir in the soy sauce and cook for an additional 2 minutes to infuse the flavor.
• Remove the beef mixture from the skillet and set it aside.

3. Prepare the Egg Mixture

• In a mixing bowl, whisk together the eggs and milk until smooth.
• Add a pinch of salt and ground black pepper, and whisk again to combine.

4. Assemble the Omelet

• Preheat your oven to 180°C (350°F).
• In the same skillet (ovenproof), layer the cooked potatoes evenly on the bottom.
• Spread the ground beef mixture over the potatoes.
• Pour the egg mixture evenly over the beef and potatoes.
• Sprinkle the grated mozzarella cheese evenly on top.

5. Bake the Omelet

• Place the skillet in the preheated oven and bake for 20-25 minutes.
• Check for doneness when the eggs are fully set and the cheese is golden brown.

6. Serve and Enjoy

• Let the omelet cool for 5 minutes before slicing into wedges.
• Serve warm with your favorite sides or toppings, such as fresh herbs or hot sauce.