Creating a Frittata is straightforward. Follow these simple steps:

1. Preheat your oven to 375°F (190°C).
2. Whisk eggs and milk in a large bowl. Season with salt and pepper to taste.
3. Heat olive oil or butter in an oven-safe skillet over medium heat.
4. Add diced vegetables to the skillet, sautéing for 5-7 minutes until softened.
5. Incorporate any cooked meats if desired, mixing them with the vegetables.
6. Pour the egg mixture over the sautéed vegetables and meat, ensuring everything is evenly distributed.
7. Sprinkle shredded cheese on top of the mixture.
8. Cook on the stovetop for about 5 minutes, letting the edges set slightly.
9. Transfer the skillet to the preheated oven and bake for 15-20 minutes, or until the frittata has puffed and a toothpick comes out clean from the center.
10. Let it cool for a few minutes before slicing.
11. Garnish with fresh herbs before serving.

This step-by-step guide ensures that your frittata will be not only delicious but also visually pleasing.