Cut the beef and shrimp into bite-sized pieces.
Dice the onion, carrot, and potato.
Heat oil in a pan and sauté the beef.
When the beef is halfway cooked, add the shrimp and stir-fry together.
Add the vegetables and continue stir-frying.
Pour in 200ml of water and simmer until the ingredients are cooked through.
Add curry powder and simmer for another 5 minutes while stirring to dissolve.
Taste and adjust seasoning with salt and pepper if needed.
Serve the finished curry over rice.