No changes, just didn't use as much onion as shown.
This is quite good, and certainly an easier/faster method than a more classic Tortilla Espanola, The combination of onions, potatoes, and olive oil is always delicious. I feel that the classic method infuses the potatoes with more olive oily goodness and the boiled potatoes removed some of that flavor. It was still good though, and another method to use when less time is available. We skipped the cheese and sour cream.