Steps
1. In a bowl, whisk together the eggs, milk, salt, and pepper until well combined.
2. Heat olive oil in a non-stick skillet over medium heat.
3. Add the chopped spinach to the skillet and sauté for about 1 minute until wilted.
4. Pour the egg mixture over the spinach, tilting the pan to spread it evenly.
5. Cook for about 2-3 minutes until the edges start to set.
6. Sprinkle the shredded cheese on one half of the omelette.
7. Carefully fold the omelette in half and cook for another 1-2 minutes until the cheese melts and the eggs are fully cooked.
8. Slide the omelette onto a plate and serve hot.