Peel and finely chop the onion. Drain the pineapple and collect the juice. Drain the cucumbers and collect the cucumber water. Cut the cucumbers into slices. Drain peppers and mushrooms.
Heat the oil. Fry the onion, minced meat and minced pork in it over a high heat for about 10 minutes, turning it over. Season with salt and pepper. Stir in tomato paste and sweat it. Deglaze with oxtail soup, stock, 150 ml pineapple juice and ketchup and bring to the boil.
Add pineapple, paprika and cucumber and simmer for about 15 minutes. Add the mushrooms and heat up briefly. Season again with salt, pepper and 4 tablespoons of cucumber liquid. Wash and chop the parsley and sprinkle it over the mushrooms.