Peel and finely chop the onion. Heat 1 tablespoon of oil in a pot. Fry the onion and rice until transparent. Season with salt and pepper. Deglaze with 300 ml vegetable stock. Cook for about 20 minutes at low heat.
Add 600-700 ml vegetable stock bit by bit while stirring. In the meantime clean and slice the mushrooms. Heat 1 tablespoon of oil in a frying pan and fry the mushrooms over a high heat for 4-5 minutes, remove. Wash the zucchini, dab dry, cut in half lengthwise and cut into pieces of about 2 cm. Wash the fish, dab dry and cut into approx. 2 cm cubes. Turn the fish in flour and put it alternately with the courgette pieces on 4 wooden skewers. Heat 1 tablespoon of oil in a large pan. Season the skewers with salt and pepper and fry them all around in the pan at medium heat for about 4 minutes. Grate cheese. Stir the crème légère into the risotto and finally fold in the cheese. Wash the oregano, put 4 leaves aside for garnishing.
Turn the fish in flour and put it alternately with the courgette pieces on 4 wooden skewers. Heat 1 tablespoon of oil in a large pan. Season the skewers with salt and pepper and fry them all around in the pan at medium heat for about 4 minutes. Grate cheese. Stir the crème légère into the risotto and finally fold in the cheese. Wash the oregano, put 4 leaves aside for garnishing. Finely chop the remaining leaves and fold into the risotto. Arrange the fish skewers with the risotto and garnish with oregano and ground pepper