Clean the onion and the peppers and chop them in small pieces.
Halve the tomatoes and grate the inside part, leaving the skin out.
In a bowl beat lightly the eggs and add the cheese. Season with salt and pepper (if necessary).
Heat the olive oil and cook the onion in it until translucent. Add the peppers and cook for few minutes. Add the grated tomatoes and mix very well. Cook until most of the liquid is evaporated.
Finally add the eggs mixed with the cheese. Cook until the eggs are done.
Serve immediately with bread. Optionally sprinkle fresh parsley on top.