Ingredients: puff pastry: 500 g (18 oz) onion: 1 pc mushrooms: 200 g (7.1 oz) salt: 3 g (0.1 oz) black pepper: 3 g (0.1 oz) cooking cream: 100 g (3.5 oz) mozzarella: 100 g (3.5 oz) cheddar: 100 g (3.5 oz) eggs: 1 pc