Heat vegetable oil in a frying pan over medium heat, and stir-fry the ground pork. Once it is cooked, add the onion and carrot, and continue to stir-fry until the vegetables are tender. Add the green bell pepper and lightly stir-fry before adding the nutmeg, raisin, and ketchup. Continue to stir-fry. Once the ingredients and seasonings are well mixed, add the amount of water listed in the ingredients, and simmer for 5 to 6 minutes.
Turn off the heat, then break S&B Golden Curry Mix into pieces, and stir them in until they are melted. Return to medium heat and simmer for 4 to 5 minutes while stirring to evaporate any excess liquid. Allow to cool completely.
Spread butter onto two slices of bread, then make the sandwich with ② as the filling, using a wrapper such as baking paper to tightly wrap each sandwich.