I don't normally put salt in because of the teriyaki and the soy sauce but if you are choosing not to use those add some salt of course. Cooking time varies a little because it really depends on how you would like your eggs. I normally like my eggs quite well done in this because it's a special taste according to my taste buds but you can choose to do your exquisite runny and barely cooked it's entirely up to you.
If you don't have passata you could use 1 tablespoon or two of tomato paste and you might need a drizzle of water just to dissolve that slightly. Of course you can leave the cheese out if you don't want it but I love it ? and could not possibly leave it out. Enjoy this delicious dish with a nice crusty bread as I was saying or a pitta bread or for dinner are you could even have it on rice or poured over some corn tortillas. Who can ever dare saying you couldn’t? Amazing!! ??