Add a teaspoon of butter to an omelet pan and wait until it starts to melt and sizzle.
Meanwhile whisk 3 eggs, basil and sun dried tomatoes and pour into the sizzling pan.
Next cover the pan with a lid and turn the heat down to medium low.
Mix the ricotta and mozzarella cheese together.
After a few minutes take off the lid and add the cheeses and cover again.
When a few minutes have passed, take off the lid and make sure the omelet is cooked through.
Slide off the pan and fold it onto a plate.