Cut onion, potato, carrot, and meat into bite-sized pieces.
Heat cooking oil in a pan and sauté the onion.
Add the meat, potato, and carrot, and stir-fry together.
When the ingredients are cooked, pour in water and bring to a boil.
Add curry powder and stir well.
Simmer over low heat until thickened.
Serve the finished curry over rice.