Clean and wash the vegetables. Cut cauliflower into florets, halve zucchini lengthwise and cut into slices. Dice peppers roughly and halve tomatoes. Peel onions and cut into rings. Wash parsley, shake dry and chop roughly.
Heat the oil in a large pan with a lid. Fry the minced meat for about 5 minutes until crumbly. Season to taste with salt and pepper. Take out. Fry vegetables and onions in hot frying fat for about 5 minutes. Pour on 1⁄8 l water, bring to the boil, cover and stew for about 5 minutes.
Stir the sour cream and Sambal Oelek. Season to taste with salt. Add minced meat and parsley to the vegetables. Season to taste with salt and pepper. Serve with fiery sour cream.