In a large pot, brown onions in oil and add garlic and beef cubes.
Fry until the meat is browned then add the wine, red pepper and mushrooms and fry for 2 min.
Add 400 ml cold water to the pot and stir in the contents of the KNORR Hearty Beef Stew sachet.
Bring to the boil while stirring.
Simmer uncovered for 20 min, stirring occasionally and add parsley.
Prepare mashed potato by mixing potato, milk and Stork margarine together.
Serve stew with potato as a side dish.