Mix the eggs with the salt and pepper and prepare a simple omelette out of it. I used a pancakes pan and didn't use any oil.
Take out the omelette on a plate and leave to rest until the filling is ready.
Peel and finely slice the onion and finely slice the spring onion.
Finely dice the pickled pepper and chop the parsley.
Mix the tuna with the onion, spring onion, the pickled pepper and the parsley.
Grate the mozzarella over the tuna and mix gently.
Put the tuna mix over half of the omelette.
Turn the half that is not covered over the half with the tuna mix.
Microwave the resulted omelette for 2 minutes.
Cut the omelette in half (each half is a serving).
Serve warm with a slice of wholewheat toast and tomatoes salad.