To prepare a the farmers frittata italian style omelet recipe, you'll need: 1 egg, 2 tablespoons melted butter, 1 teaspoon kosher salt, 1/2 teaspoon pepper, and 1 tablespoon olive oil. Preheat the oven to 375 degrees F (190 degrees C) and grease an 8 by 8-inch (22 by 23-centimeter) baking dish with non-stick cooking spray. Set aside. In the bowl of an electric mixer fitted with the paddle attachment, beat the egg whites on medium speed until stiff peaks form. Gradually add the milk, beating well after each addition. Pour the mixture into the prepared dish and stir to combine. Bake for 12 to 15 minutes or until the top is golden brown. Serve warm.