Savory Omelette Sandwich with Herbed Vinaigrette

Method

1. Whisk eggs, milk, salt, and pepper in a bowl.
2. Heat olive oil in a nonstick skillet over medium heat.
3. Pour in the egg mixture and cook until set, folding in the cheese and parsley.
4. Toast the bread slices.
5. Spread mayonnaise and Dijon mustard on one slice of bread.
6. Place the omelette on the mustard side, then top with the second slice of bread.
7. In a small bowl, whisk together vinegar, olive oil, and a pinch of salt for the vinaigrette.
8. Serve the sandwich with the vinaigrette on the side.