Clean the mushrooms and cut into bite-sized pieces. Peel and chop the onion and fry it with the mushrooms in a coated pan in a little vegetable oil over medium heat.
Halve the tomato, cut out the stem end in a wedge shape and cut the tomato into 1 cm cubes. If you want the tomato skinless, you can dip it briefly in boiling water and then peel it. Also cut the sheep`s cheese into 1 cm cubes.
Place the eggs in a bowl, whisk well with salt, pepper and oregano and stir in ¾ of the chives.
Add the tomatoes to the mushrooms and onions, fry briefly and then stir in the eggs. Let the eggs set briefly, then sprinkle with sheep`s cheese and leave everything on the switched-off plate until the eggs are completely set.
Spread the scrambled eggs on plates and serve sprinkled with the remaining chives. Serve with fresh rolls.