Fry the potatoes in olive oil for 3 minutes. Use a frying pan that can withstand oven heat, about 20 centimeters in diameter and preferably with a high edge.
Omelet batter
Whisk together the ingredients for the omelet batter and beat it over the potato.
Set the frying pan in the oven until the omelet has stopped and has a nice color, about 15 minutes. Tomato Salsa
Mix the ingredients for the salsa in a bowl and serve to the omelette.