Cut the beef into bite-sized pieces.
Dice the onion, potato, and carrot.
Heat oil in a pan and sauté the beef.
Add the onion, potato, and carrot, and stir-fry together.
Pour in 200ml of water and boil until the ingredients are cooked.
Add curry powder and stir well while simmering.
When it thickens, turn off the heat and serve in a bowl.